Hey Don. I've not seen good old red nitro glazing putty for twenty years, LOL. Brings back memories, surprised they still make the stuff. Not picking at you as it's perfectly fine for such an applications. I'm wondering, have you eliminated the cooling fairings, leaving these up to the individual modelers to fashion as they like? Also, is the final choice to go with zero thrust offset and leave any changes to that for the individual modelers as well? Thanks, Ted.