I ride trails alot, and bought vitos 2 stage reeds. I just went back to stock. I feel better low end response with stock. You can feel the difference mid and top, but they suck low end. I got lower gearing sprockets, and that helps in the tight trails. Anyway just my two cents, but if you want some like new 2 stage reeds i have them for a good deal. CONGRATS! P.S. skip the spacers.
Oh yeah and if you ride trails mainly, I wouldn't cut the plastic! You'll appreciate it after a few mud puddles!!!!
Had a FMF low end pipe on my 250R and i loved it. Have FMF fattys on the shee and can't complain either.