I agree with you @ed70 I play TC95 in both RA 63 and 70 and the difference is very subtle at least for the V3 version I play. The same kind of difference going up or down 2lb in tension, some will feel that a lot while others will hardly notice. Both RA are extremly arm friendly.tbh I hit with63 & 70 ra’s in the 95 & 100 and I didn’t notice much between them. Always thought the63 was pretty crisp for it’s RA rating. And since the version 2 high SW differences on the 63 have been sorted out maybe there’s little love for the 70’s.