No issues what so ever with the Pro X5. I have to ask if this is normal. I am always on the ground at 20% and I try to let it just idle. But I cannot, it will start increasing RPMs until it's rear gets off the ground, without my input to decrease throttle it would possibly flip over. This is not a real issue because I am draining down the battery. Anyway, just curious. Also a BIG thanks to all that have posted on this forum........I have been very busy reading and learning.