[dconant]

Yes on resistors as well as the rest of them. I'm pretty picky as for how far off they can be. Probably less than 5 percent.
I adjusted #17 until squeal and backed off about 1/4 turn as you said. No squealing anywhere.
Yes 11 and 15 peak good.
I tried another speaker (PM) and it sounds the same. No rubbing on original speaker.
Someone before me soldered all chassis grounds.
My antenna is over 100' from house to several trees. Since I can pickup two Canadian stations about 100 miles away I'd say its doing pretty good. Plus ground is to a ground rod separate from house ground.