I tried to replicate the Mosquito from Estes.  I was unsuccessful.  I flattened the fins to get a modicum of stability.  That print printed but it looked sketchy where the fins met the body so I had to grow the thickness of the fins and the body to get a doable print.  I also had to grow the thickness of the launch lug to get a support structure to print.  In the end however I think it looks pretty good.  Next step is to put an engine in it and see what happens.