RE: phoenix models yak 54
I would say it is not a 3D plane, because the surfaces are too small, but it should be very aerobatic. I trim my fiberglass by first drilling a hole in it with a stepped drill bit (uni-bit) and then using a dremmel tool with a sanding drum on it to get the right size and contours of the hole I am making. It is dusty but easy on the paint.
I haven't seen the Sukhoi up close yet.