As I promised I have some tips to pass along. The first concerns a source for top flight silicone
http://.www.hobbysilicone.com/silicone.html RTV's of all manner duro's from 05to36 shore A fast set or reg. They have a starter casting kit w/1lb silicone & 2lbs uro casting resin for $35.00
Do you find yourself wanting degassed silicone, but not wanting to part with 500 clams for a neat oil bath vacuum pump?. Those of you who live close to a "Harbor freight tools" are in luck. They sell a little gadget called a vacuum transducer, a majigggy that works like an air mover ie a high veloc flow across a port creates a deppression in that port, like a siphon airbrush. You'll need a 5 gal compressor that hits 5 acfm @ 90 psi. Take a 8 qt pot stainless prefered, a 1" thick acrylic lid w/ a thick sheet rubber gasket. Next bore a hole for a 1/4" NPT elbow, connect this to 1/4" ball valve, then a 1/4" NPT nipple, to the vac trans inlet, to air line connector. With a full tank place a less than half full cup of mixed RTV into pot, connect air line & open valve. RTV will slowly rise & boil(If it gets too high cover exaust port.) this will "crash" the silicone & prevent overflow. With exaust open continue to boil RTV about 1 min. Now close valve & disconnect air, when compressor is recovered open valve RTV is ready.
The devil is in the details...and somtimes he's in my sock drawer. On the bench.
Airfix 1/24 bf109E scratch conv to 109 G14AS
MPC1/24 ju87B conv to 87G Rev 1/48 B17G toF
Trump 1/32 f4u-1D and staying a1D Scratch 1/16 TigerII.