DL.3s wobble and they won't come back

So here's an interesting problem I've been having... I've found you can nudge the pan or tilt on a DL.3 quite a bit.. and it won't correct back... the only way to get it to go back is to re home or give it a good push (more than a couple of clicks) and it goes back to its position. you can move it a good 15-20 degrees before it figures out what's going on and goes back..
and this issue has carried across the last few firmware updates

anyone else having this issue?