Back to work after a break...
I took a break to fix some other equipment so that I could sell it at a swapmeet. I put one of the FT-101E's back on the bench and checked the output. The tubes are unknown, but seem to put out good output on 80 and 40 meters. I can only get about 9 watts on 10 meters. I've spoken with some people, and they say soft tubes can cause the dropout on 10 meters. So next step is to swap the tubes out and re-neutralize the new ones.