Just got my X8+ and have to say I love most things about it (including the price!). Very nicely designed and I love the open Arduino controller system, with all of its options and easy configuration, versus the closed system that my other (DJI) coptors use. A few things I am not loving, and was planning to upgrade are: (a) propellers (seems like slower spinning and slightly larger props would work better; carbon fiber might give a small weigh loss advantage). Anyone do a prop upgrade yet and if so, what props did you use? DId you have to reconfigure the controller? (b) GPS seems very finnicky - I had to increase HDOP to 375 to even get past the preflight safeties. Would a better GPS antenna fix this? location of antenna? Or does it need a better GPS subsystem? Ideas? (c) transmitter range seems pretty limited, even with safeties disabled it returns to home way too soon compared with DJI systems. What is the issue? Antenna seems most likely culprit, I am going to try a helical. Other ideas? (d) FPV options. 3dr's FPV option is getting pretty negative reviews, and besides that I would prefer to use a dedicated CCD rather than GoPro (lighter weight, lower power, higher refresh rates possible, and less expensive; plus customized CCDs for thermal and night flights). FPV options that integrate nicely with the X8+ that anyone has tried?