Duck Diving Funboard?

Hey everyone I've been reading the forum for a bit now but just got an account, you have all been very helpful so far! So my question is about duck diving. Right now I'm riding a 6'6" funboard/eggshape on about 2-3 footers. I've been getting along pretty well with turtle rolls, but since I eventually want to move down to a shorter more aggressive board, I'm going to have to learn to duck dive. So is learning to duck dive on a board like mine a possibility? or is the eggshape just to buoyant?