Here are my results so far. I attended the Eastern Primitive Rendezvous in Zions Grove, PA (10/20 -10/27) I had no time to work up a load for my .54cal Woodsrunner (40" barrel). A friend had an old TC book with recommended powder charges. For the TC Renagade (26" barrel) it was a Wonder Lube patched .530 ball with 80gr FF Goex powder. So I gave it a go. I was shocked at how accurate this load was and placed 2nd in the Men's 25/50yd aggregate. I really don't care about winning competitions, as I built this rifle to hunt a doe or a bear in PA's Muzzleloading Season in 2 weeks (10/19 -10/26).
On the other hand I spoke with some experienced shooters, who have been competing in flintlock shoots for over 40yrs. A few guys told me was using too much powder. And I should start with 50gr for 80gr was excessive. While I do plan to work up a load by experimenting with different powders/amounts in the future, I have confidence in this load for this season. I'll keep you posted on how the hunt goes. Thanks again for everyone's input. Heck, that's why I joined this forum!