Thanks for all the comments on the TT support. I will start with the unit on top of the rack and if it's too sensitive, I'll remount the wall rack. @mammothguy54 I will look at the Symposium Acoustics platforms as well.
@ghdprentice the LP12 is probably circa 1980s. I purchased three over the years, then upgraded and added the best parts the on one I use. Then the other two I will sell when I get around to it.
@smatsui interesting that you have both the LP 12 and the P10, along with Klipsch Cornwalls. I have the small Forte IVs, and plan on comparing the LP12 with the new P10 when I actually set the P10 up. The synergy you have found with the P10, Apheta and the horn speakers is compelling.
Mark