Bretone

Hello everyone! This is my first post on this great site!!! I Just got an TM R7 TP Head with 8.5° and a Speeder 757 X. But I don`t like the Speeder! I used to play an 510 TP with a NV 85X, tipped 1 Inch for the last 18 months. It feels good but it is perhaps a bit too heavy and i think i am loosing some distance. I`m trying to add around 5-10 yards. I thought about a Vista Tour 70 X-Flex or a NV 75X. I tried the R7 TP with the Grafalloy Prolite 35XX from a German European Tour Player which was O.K but just a lot too stiff and not heavy enough for me. Has anybody experiences with one of these shafts in the R7 TP?