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  1. #324
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    In other words, cost >>> benefit for most folks. Protech is for Pros who operates at very very high volume.

    Quote Originally Posted by kwun View Post
    ES5Pro/tech is always going to be a better machine. the operation is faster, smoother, quieter, and electronically more reliable. and you should expect that for 10x the price.

    however, having said that, i have side by side compared with the same electronic scale between a Protech and my WISE, the tension difference is only around 0.1~0.2lbs.

  2. #325
    Administrator kwun's Avatar
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    Quote Originally Posted by Pete LSD View Post
    In other words, cost >>> benefit for most folks. Protech is for Pros who operates at very very high volume.
    the marginal cost for the benefit has a very high diminishing return to be honest.

  3. #326
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    Yes, marginal cost (MC) >>>>>> marginal benefit (MB). It would be interesting to plot MB (y axis) vs MC (x axis) of various types of machines.

  4. #327
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    MB = MC is the breakeven bang for the buck point.

  5. #328
    Administrator kwun's Avatar
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    Quote Originally Posted by Pete LSD View Post
    Yes, marginal cost (MC) >>>>>> marginal benefit (MB). It would be interesting to plot MB (y axis) vs MC (x axis) of various types of machines.
    cost is easy to plot, but how do you quantify benefit? how do you put a value on something like electronic vs. crank, or flying vs. fixed clamp? or even how sturdy a machine is?

  6. #329
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    We need agreed upon categories of quality first. Will you say and assembly of pro stringers can come up with a list of qualities?

    Quote Originally Posted by kwun View Post
    cost is easy to plot, but how do you quantify benefit? how do you put a value on something like electronic vs. crank, or flying vs. fixed clamp? or even how sturdy a machine is?

  7. #330
    Administrator kwun's Avatar
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    Quote Originally Posted by Pete LSD View Post
    We need agreed upon categories of quality first. Will you say and assembly of pro stringers can come up with a list of qualities?
    yeah. but how do you put a number behind each quality?

  8. #331
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    In production/operation management, the "house of quality" is used to match customer demands against the company's production capability. the voice of the customers is the starting point and is derived from the marketing and R/D guys.

    http://en.wikipedia.org/wiki/House_of_Quality

  9. #332
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    Under controlled condition, the pro stringers can measure their time saved with each feature of the machine tested. They can also tell us the relative importance of each feature by ranking it from 1 to 5 - one being must have whereas 5 is not important.

  10. #333
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    Attaching a dollar amount is easier afterward . . . hopefully . . . Any thoughts?

  11. #334
    Administrator kwun's Avatar
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    but then time is not the only measurable quantity. it is the ease of use, the feel, the look. the quality of the string job.. etc...

  12. #335
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    In statistics, these non-numerical variables (qualities) can be expressed with the use of dummy variables for the purpose of linear regression. Can we do something similar here in measuring qualitative variables?

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    Perhaps, the Greatest GrandMaster SH can help us out since he is the uber statistician and math whiz here.

  14. #337
    Regular Member Mark A's Avatar
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    There's no way to transmit the cost of a machine to the charge for string jobs - the customer isn't going to pay more just because you used an ES5PT over a WISE hybrid machine (well, they shouldn't, IMO).

    This means, reputation and advertising power aside, the machine specifics are only applicable to the stringer, so they contribute to speed and, to a lesser extent, comfort/ease of use/enjoyment etc.

  15. #338
    Regular Member DinkAlot's Avatar
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    Quote Originally Posted by Pete LSD View Post
    Attaching a dollar amount is easier afterward . . . hopefully . . . Any thoughts?
    To each his own.

    That is all.

  16. #339
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    Quote Originally Posted by kwun View Post
    yeah. but how do you put a number behind each quality?
    Cost of Silent Partner stringing machine: $500.
    The expression on son's face this morning when his Christmas present was finally strung: Priceless.

  17. #340
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    Quote Originally Posted by Pete LSD View Post
    Perhaps, the Greatest GrandMaster SH can help us out since he is the uber statistician and math whiz here.
    In one word with two letters "NO".

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