Shifts ok. Because the stage 2 is a ceramic material, it is a little grabby when taking off. I have to start out in first gear instead of second like I did with the stock clutch. Once you get use to it, it's not that noticeable and engagement is smooth.
Keep in mind that the clutch is not designed for racing or sled pulling, nor is it advertised as such. If you plan on doing any of this, maybe SBC would be a better choice.
My truck was ran on the dyno and made 351 h. p. and 851 lb. ft. torque. The clutch has performed with no problems. I know these are baby numbers compared to others out there, but you can use as comparison to what you have or may have in the future.
Hope this helps.
Anthony