I gotta admit....I sorta miss mine, but I don't miss working on it. I'm running 2 HBKII's and unless I crash or hit....I seldom wrench on either of them...they just fly. In the blade CP/CPP favor...I can set up a heli perfectly because of the working on my CPP. The HBKII has problems out of the box too. Personally...I think the stock rotor blades are a joke. The stock motor and ESC are junk out of the box too and going brushless is mandantory. The final real defect in the HBKII is the inherient tendency to throw the belt which requires installing a taller brass shim and re-drilling the pin hole on the main shaft higher so the belt/pulley are properly aligned. After you get it properly set up...it works flawlessly. I spend time charging batteries and flying...not figuring out what's wrong. The HBKII electronics are pretty reliable other than some glitching once in a while with the stock radio system just like the Eflite stuff. If nothing else, owning the CP series will make you a good troubleshooter and heli mechanic.