Good post Roy!
Couple things, first throw out the silicone. You'll notice we don't use silicone anymore on any regs.Nitrox or not it is easier to clean and in a regulator will allow the same reg to perform better than with silicone (we learnt that the stupid way when we did seperate Nitrox and Air regulators, the nitrox regs ALWAYS did better on the bench) On a console it will be exposed to tank pressure so Nitrox becomes an issue, a reason I recommend that dealers only use the viton swivels/spools, it doesn't take a lot of dives to have a buna oring that is dealing with 3000psi of 36% to crack/crumble like the tires on a 71 VW bug.
Now that that is done...
The Alliance program also covers instruments, so the oring in the QD and the HP Spool/swivel orings are covered. Sometimes dealers forget that.