i've got the 2000 also, i have had nothing but luck with it shooting off my X tec, the only thing that i had to do with it, was get the rest implants, because the arrow makes A LOT of noise on the fingures, but other then that i haven't had any big problems with it. another thing that i did have to do, is make the all the Cock feathers were pointing towords the outside, raither then down, do to the cable that is used to pull the rest up. but i would recomend it to anyone. if you are going to be changing arrow diamiter a lot, then i would go with the 4000, just cuz it's easier to adjust on the 3D shoots.

-Hoyt