Matt, thanks so much again for your patient explanations, and for filling me in on your subsequent "upgrades". I love to tinker with stuff and am always looking for ways to make things simpler, which almost always means better as well.

OK, I think I now have a complete understanding of the design, materials and process.

The only wrinkle with the Syssa - as you know from doing your and Ed's mounts - is that the engine uses 3 stand-offs and one of them, the "top" one in the inverted mounting standard, is not the same distance from the crankshaft center. By my measurement that odd one is 31.5mm and the other are 42mm.

So I am just going to make a little "ear" extending inward on the engine-side ply plate so that the crankshaft and soft mount centers are in alignment, and maybe beef it up a little at that spot on the ring. No biggie.

More later when I get underway... probably a couple of days.