Hi, i currently attend UC Davis and have been in need of a good stringer (the couple of people that i went to before either have uncalibrated machines or are inconsistent). We have a tennis shop that also strings badminton rackets (the machine is constant pull and the stringer looks like he's got a lot of experience). Unfortunately they charge quite a lot and the shop only carries ashaway rally 21 ti and i dont' have any strings on me at the moment. Can anyone give me a comparison between the rally 21ti and bg65(my usual) at 25lbs?