I'm trying out the Yonex 850 16g (non-Pro) multifilament in the mains with Pro Line 2 1.20 in the crosses. It gets better and better as the hours go on so much so that I'm now thinking of switching to a multi/poly hybrid permanently, after being a full poly user for nearly 15yrs. Excellent access to spin and great, controllable power. Super comfortable. I'm not the greatest volleyer around but this combo turns me into a splendid volleyer, I've been hitting all kinds of awesome. (I think perhaps my problem is that the other polys I usually use are shaped and they grab the ball too much, especially making volleys off somebody's heavy slice very tricky). Whatever, my confidence on the volley right now is soaring. Durability has also been very good, especially since there was heavy notching after 90min but it's still going strong after 6hrs. I strung it 54/44 and I guess the poly lost tension and that's why it's not sawing as much anymore. And that's why I'm liking it better; next time I may string it 54/42. Another racquet of mine is strung with full multi (Yonex 880ti 16g) and it's not nearly as comfortable especially as time goes by; the string do not want to slide against eachother. I should mention that I'm using this in my doubles league where power is needed and things unfold very quickly. I'm the only one i've ever seen who uses full poly on a midsize racquet in that league. In fact, very few use midsize racquets at all. In singles, I think I'll stick with full poly, especially vs pushers. Anyway. Any converts out there that would like to share? And what combos have worked or not worked?