Hi Steve

I am out of country at present and cant tell you 100%. JP Zardini from ZN Lines also flies Beryll and I asked him to sent without knowing what the sizes were. If not mistaken two sets of large for Rudder and ailerons and one set of meduim for elevator. Aslo asked him to send you his soft mount system, very simple, carbon ring with three rubber grommets, I think the helicoper guys use the grommets, has 3mm bolt on one side and thresded for 3 mm on the other side that mounts through the front of the plane. You might consider getting four grommets as I found that I had to reduce the right thrust and ad a bit of down thrust to stop the plane from climbing and veering to the right when opening from half to full throttle. Attach find photo of setup.

Regards
Burt