Hello all, I'm Dennis (48 years old) from Northern New Jersey , USA. I recently bought a used (ebay) yuneec q500 4k. I have had a few "toy drones " in the last 3 years to get my feet wet. Wow, I did not realize how much I needed to know! In years past I worked at a hobby shop building rc cars and trucks, so I'm familiar with a lot. Just wanted to say hello to everyone, and say thanks so far for this weath of info. Fyi, my first flight was an epic fail, lol, it took off started to take off and made a be line straight for me so reacted by trying to grab the landing gear and broke two blades on my wrist!!! Some blood and numbness later I found out that I bent the motor shaft. So via this forum I've replaced the motor and nothing I now think it's the esc witch I'm going to replace tomorrow. I do think I'm going to need some advice after I get it running again. So thank you in advance.