RC Jones,
I must have a really old version. My needles come out from the sides as do my chokes. Does yours have a radial mount that also acts as the engine backplate?
A friend of mine had one in his weeks special. Not sure what prop 20x10 I think. It flew it well though.
Good Luck with it. Love the looks of mine but I'm also used to my old DP 330L that landid like a butterfly!!!!
Frank