Can there be ONE, just ONE thread where someone doesnt start bashing?Vibration, handshock, ect, ect. Come on. EVERY bow will have some sort of buzz, handshock, vibration to it BARE. thats why the make STS, Limbsavers and COUNTLESS other NOISE AND VIBRATION REDUCTION PRODUCTS.
On to the orignal question at hand. The 7.0 did draw a hair smoother but not enough to make a huge difference. The 4-5 fps loss is only minor in a bow that will still shoot a IBO arrow at 320+ fps. Its all going to be a matter of personal preferrence. Some like a shorter brace height, others dont. Me personally i like between a 7-7.5" brace so the 7.0 would be ideal for me. If i was looking for pure speed then the 6.0. But there again its on 4-5 fps. You just need to shoot both. you wont be able to tell major difference in the 2 as far as forgiveness until you start stacking them on out there at 40+ yards. then that 1/2" of brace may become more noticeable.