Save yourself the grief bud.
Those were a p.o.s of epic proportions, in the top ten of exquisetly bad collective pitch helicopters. Check out www.rchelicopterfun.com . Get a simulator. Then get a Blade 450 or similar and set it up per the web site I recommended.
You'll here sometimes someone engaging in delusional euphoric recall about their CP plus or CP who 'll say "you'll learn a lot".
I say you'll only learn how to crash and spend money, along with getting very frustrated with the hobby.
They're junk. Doug