Thanks tph1 but it still needs improvement. It would really help using some springs on the clamps like used on inlet and exhaust valves on car engines or something similar. That should really help even out the pressure. I had some problems there because of the ply rib in the foam and had to reduce the pressure from what I'm used to, not really what I wanted when I'm using polyurethan glue. But it turned out just fine.

If you are still looking for a cowl for the Typhoon 2000 it shouldn't hurt trying Radio South http://www.radiosouthrc.com/