Mobile large grid rotor issue

Hi,

So on the mobile rover base I am making I built a loading ramp (large grid) using a pair of rotors. I made sure to set everything right as to please Clang. It seems that I have been given a less than base destroying curse this time as it sounds like my base is moving constantly! My base for some reason says that it is moving at a whopping 0.06/0.07 m/s constantly when in park and only says 0 when I shut everything off. I checked to see if it was the wheels by removing them all and having it sit on stilts and this solved the sound/movement issue but this kinda defeats the purpose of a mobile base. I put the wheels back on and all seemed fine until they touched the ground and it started again. I deleted the rotors next and it stopped it for the most part, idk if it doesn't like the fact that I have six wheels. So I think there might be some issue with rotors on non static grids. I can attach the save file if you guys are able to look at this and this ticket doesn't rot in bug hell.

Cheers!

Mike

PS. Forgot to mention that I wasn't in experimental mode and didn't have any crazy settings or mods on. Wanted to use this thing when I was brave enough for multiplayer, ya know?