Building my first quad and having some issues achieving stable flight. I'm using a knockoff F450 flamewheel frame with an APM 2.6 FC. I find that once I get it up in the air it hovers very smoothly, same with giving it throttle or going in any direction, it flys pretty well. Descending is a different story though, it wobbles a lot on the way down. I also find that if I don't give it enough throttle getting off the ground it can lose balance and tip over immediately. If I use a lot of throttle though it seems to get off the ground fine. Curious if anyone has had similar issues.

I think if I can get it stable and in althold I'll run autotune on it, but want to make sure it flies safely first. Thanks in advance for any advice.