Tell about your experience with your old Audio-Technica SL-1200s..

Yes, pardon me - Technics SL-1200 mkii, but not necessarily limiting the discussion to just that model. 

Very good, appreciate the information and pictures that everyone is sharing.  I'm always on the lookout to upgrade whatever pieces of my system I'm focused on at the moment, and right now I'm going through a treasure trove of used LPs I picked up at a Goodwill - my kind of music, and in pretty good condition, one of those they-just-rolled-a-cart-of-the-back moments.  I'm not sure I'm going to stay with Technics for my next upgrade even though there would be less adjustment to a new table - I did in years long ago use the pitch control to make mix tapes and slow pieces down to hear certain portions when learning songs in my band days, but not all in on going for an admittedly better GR (can't really justify the G right now after the money I've recently spent on other pieces) with the pitch adjustment/cue light/strobe - maybe one of used SP's or a VPI table might be the ticket.  Any SP models to stay away from or not worth the trouble?  I know nothing about those, except some have the separate power unit and others that do not.  I see used SP-10's going for not that much but they look kinda cheesy to me, like the ones with the separate speed control wheels.  Better to stay with the SP-10mk2 and above?

I was using the LP Gear Zupreme head shell because I wanted to adjust the azimuth - problem with that is you can't use the Technics stylus alignment tool because of the way the end is configured.  Anyway, I just couldn't get my Hana SL dialed in, so I changed it to a replacement Technics head shell, and everything fell into place.  The Hana only weighs 5 grams, so maybe that had something to do with it.

As far as the Goodwill LPs - yeah, you won’t find much if anything good if they’ve already been put on the racks. The only way you have a chance is grab them when they’ve been wheeled out from the back and are sitting around, waiting for someone to put them on the racks.  The serious people watch for the carts to come out and pounce on them.  

I tried to get the Zupreme to work, but never could get it dialed in. It sounds so much better now with a silver Technics head shell that I’m afraid to touch anything until I figure out why. I spend a good amount trying to get all of the adjustments right. 

Thanks everyone for their comments/suggestions - even the ones that strayed a bit from the question because it made me think out of the box, and again I apologize again for hosing up the title.  Haven't bought anything else yet - was about to pull the trigger on a GR but then they evaporated here on the eastern coast, and almost snagged a VPI Classic 1.  Looked at the SP-10 MKII's available but the ones I saw were in the $3-4K range and the others had speed/spindle/damage issues.  Tried yet again to swap the aluminum Technics head shell with the Zupreme but still couldn't get it to sound just right (though I did get the azimuth dialed in near perfectly).  Did the calculations for resonance and came up with 9 Hz for the Technics tonearm and head shell with a Hana SL cartridge and 8 Hz with the Zupreme - not a big difference there but the Zupreme is a bit heavier - 12 grams vs 7.5 for the Technics.  Maybe the installed KAB fluid damper is coming into play here, not sure.  Can't get a definitive reading on the resonance freq from the Analogue Test LP.  I'm holding steady right now, it seems.

Like to keep my options open - any issue with adding the EPA-100 to the SL-1200mkii?  I could take that arm and put it into another table down the line if the mood strikes me, and it would probably be better than any stock Technics arms I replaced.  Thoughts?

Would love to put a 309 on my table but they're getting pretty expensive and scarce.  Add in the armboard as well.