Had the springs tested today and... Guy said they measured a tad over 100# at 1.8" so they have to be the 105's. I'm actually fine with that, Intense says the S2 cam can run 105 or 130 and my S3 cam says 130's but S3 is barley bigger than the S2 and the S3 makes power to 7krpm which I won't ever go above 6400ish, I'll prolly set shift points at 61/200. So I think 105's will do, shouldn't have any valve float at those rpms and the titanium retainers will help that too.