some believe at a slightly higher hover point the craft will handle better at least for dji flight controllers, its called disc loading--bartman was taking about this in previous post in regards to higher the 50% hover point. my personal experience w/ my 450 lead me to beleive that there may be some merit there, 10inch props w/ balanced motors/props no matter what i did produced worse video then w/ 8 inch props especially in any wind. light disc loading=under propped= higher hover point. my hover point on 8 inch was 62% exact, with the 10 inch was 45% ish. heavier disc loading on 8 inch props caused a higher hover point at 62% and produced better video but at the cost of flight time. i lost about 3 minutes with 8 inch props compared to the 10inch props.
if your flying a quad it would matter less safety wise if you have a lot of power in reserve cause if a motor goes your hosed, on a hex there are algorithms built into flight controller so if you loose a motor as long as there enough power with remaining motors you can still fly and land safely. if your going for efficiency then lower hover point typically means more efficiency, think of it like rpm on a car and mpg's. for my hex build i want efficiency and safety cause i'm flying a gh3/zen its obviously bigger and more expensive then my go pro 450 build so i'm building it at 50% hover maybe even a little less and hope i can tune it for stable video. sometimes when you do a custom build you may aim for 50% but real world result can be different. personally 65% would be my absolute limit on a hex, you need enough power in reserve to hammer on it if you hit heavy wind or need to gain altitude fast for safety or loose a motor
