Jeff - if there is a 450 waiting on you, you will love it. When you first spool it up though, be aware, it is a different beast and you will know its power by the increased sound. I know I shouldn't but I buzz the old CPP and HBKII fairly close to me. The T-Rex I keep a much safer distance. Just strap on the gear and start slow again. You will be amazed. btw - the HBKII is a no brainer at its cost and flight performance. You get a good bit closer to T-Rex type control over flight than with the CPP and it can still fly in the much smaller spaces allowing more practice time.

Have fun in CA