Hello,I've flown quad copters for a couple years now until several months ago I experienced a power failure up in the air and it came crashing down 400'.  So now I'm looking for a new one and I was thinking of building my own because I was always a little frustrated with run time.I'm thinking of a rightwing Drak 60" version but adding 4 or 8 rotors for VTOL.Can anyone with experience here please tell me if such a thing would work and what issues I may face?I'm fairly advanced with electronics…See More