if ur gonna get em, get em from mcnewsautomotive. they rate very highly amongst the users, virtually identical 2 the cranes. their focus (no pun) is on low 2 mid range power, whereas kents (which i'm sorry r 2 much money) and crowers focus up on top. so its ur choice on what u want 2 focus (no pun) on and how much u want 2 (stage 2 or 3 FRs/Cranes, Crower 1s or 2s, or kents).
questions welcome,
-Ult