So, last night I finally got around to it. I haven't fired her back up yet, though, as I also rinsed my filter while I was at it, and just wanted everything dry. Super duper simple. Most straight forward tip I've picked up for AV, I think.
When I removed the lamp assembly, I looked at it to see if it needed cleaning, and I thought, gee looks perfectly clean to me, I'll just check out the prism. Well, the prism also looked clean! (None of that glazy, smoky look that I've seen a few pics of). I decided that heck I came this far, bought the 99%, might as well. Well, there was a good amount of gunk on it! At least going by what was taken off by my microfiber. I did indeed use a pencil's eraser to help me reach.
So I thought I better do the lamp assembly as well, because obviously my eyes can't tell, and there happened to be either nothing to extremely little coming off of it.
I could visibly watch the alcohol evaporate on the prism, shortly after cleaning applications. I may or may not follow up with subjective impressions, most likely not. Too bad I don't own the measuring equipment to offer a real world lumens increase. I've logged very roughly about 1300 hours on the PJ itself (2nd bulb now).