The reason i don't recommend it is because I've seen more than one seal that spooged themselves out of the bore because the RTV shears and the sealant reduced the friction holding it in place (ultra RTV is superior, but so many people use the rubber crap that doesn't stick to anything). Most seals are conformable (or at least coated in conformable materials) to accommodate inaccuracies in the bore, so that's never been an issue for me. This is why I brake-clean seal bores and seals religiously before I send 'em home. Never had an issue.
