Okay, I think I have enough of experience on these shuttles. They are: Yonex AS20 Yonex AS30 Yonex AS40 Yonex AS50 and here is my little review ----------------------------------------- Performance: AS50 is about the same as AS40, and I can't really tell which one is which if you mix them. Also, the flight of AS40 and 50 is about the same. Good Quality. AS20 is ok, but sometimes feels a little sloopy. AS30 is a little better, but not too far from AS20. ------------------------------------------ Durability: I think AS40 last the most. It can last about 2 games if you hit it well. AS50 is little shorter than AS40, but it's generally above average. AS20 and AS30 are the same, last only 1 game, or sometimes 10 points. I wouldn't say AS30 is better than AS20 in this area because it isn't. ------------------------------------------- Price(in Taiwan, and used 1:33 as the rate to the US dollars.): AS50: $13~$14 AS40: $12~$13 AS30: $11~$12 AS20: $10~$11 and I think I will only buy AS20 and AS40 since I think they have better values. Use AS20 for regular play and use AS40 for games with people. The price in the US is very high, I know. However, in TW, they are not as expensive though Share your thoughts!
Wot About the AS-10's we use them at our club for club nights and the teams use AS-30's and the 1st Team uses AS-40's. The AS-10 shuttles are good but they don't last to long. Same with the AS-30's the AS-40's are gud though they last a good Length of time But Yonex Arn't the best Shuttles. Try RSL Tourny No.1 Or Tourney Classic. Or Inflight Shuttles Premier or Premier + they are better than Yonex.
In my experience the "higher numbers" last longer: AS-30 < AS-40 < AS-50 (in terms of durability) The flight quality of those top 3 seems about the same. AS-20s have noticeabley inferior flight. I haven't played with AS-10s.
I always found the 20's lasted better and longer than the 40's and since they were cheaper stuck with them when I could.
I don't think the flight path of AS-20's is as consistent as other shuttles in that price range such as Yehlex Tournament. The AS-40's are certainly better than the 20's, but there isn't enough difference between the AS-40's and Yehlex Tournament to justify paying an extra £3 (or at certain shops where Dill lives, extra £10!). I quite like the AS-30's; the batch I tried at least seemed to last longer than Yehlex and were about the same quality. A mate recently got a free tube of AS-10's from Central Sports; they were very poor quality. The cork was far too heavy and despite being 78's, they all needed tipped to slow them down.