Butler, I'm new to the sport, so I haven't been to any big matches yet, but most of what I've seen so far is just folks having fun. My limited view of the sport could just be the result of keeping my head up my @$$, though. :-D
For me, real competition just isn't going to happen. No matter how fast I learn to shoot, I've got a screwed up leg, and I'm not about to hustle back and forth during a stage. Strolling back and forth brings out plenty of good natured ribbing, mostly suggestions that the timer be swapped for an hourglass or even a calender.
That leaves me free to shoot purely for the fun of it. For me, that means the caliber starts with the number 4, and the case is full of real black powder. Along with the ribbing about my speed, I get plenty of folks cheering me on when the flames and smoke start rolling out of my guns. Depending on the wind, there's usually some coughing, too.
Other folks in the sport have been trying to get me to download to increase my speed. Some firmly believe that their 7 grains of substitute powder smokes as much as 15 grains of real black powder, and they'll probably stay with those lighter loads, if they can. If that's their brand of fun, I'm fine with it. I don't even tease them for shooting semi-smokey mouse farts. It's enough for me that the folks loading what amount to smokeless loads will be effectively banned from the black powder classes.
Of course, smoke isn't the only issue. Many of the subs don't require special lube, or cause binding, or add any of the other challenges that real black powder does. That was pretty well ignored by the TGs, and rightly so. Not everyone has access to black powder everywhere that SASS matches occur.
It would be nice to find a large enough group of like-minded shooters in my area to support at least a quarterly "wholy black" shoot. Divide them up into a sub-forty caliber posse and a forty and over caliber posse, set some grass on fire, and have some fun.