I've see a couple of folks say it's too much trouble coming up with an alias. You already have an alias. Just use your user name from here.
Also, it sould be pointed out that there are three different "sports" under the banner of SASS.
The Single Action Shooting Society (SASS) is the overall governing body. It's run by a group of gentlemen called The Wild Bunch. This group of men used to be HEAVILY into IPSC, IDPA and other modern shooting sports. After their normal matches they'd go back to someone's house, sip whiskey, smoke cigars and watch old western movies. One day one of them got the bright idea of shooting thier modern matches with the old cowbody guns they had laying around. They had a blast. Not long after that they formed SASS and the rest is history.
Now under the banner of SASS you have three completely different and separate sports.
Cowboy Action Shooting (CAS): two sixguns, a lever rifle and a double barrel, model 1887 lever or 1897 pump shotgun. Minimum costume requirements are a pair of jeans, long sleeve button down shirt and a pair of work boots. That's it, nothing more is required. You don't have to wear a hat and you don't have to wear cowboy boots.
Cowboy Mounted Shooting: Sort of the same as above except you do your shooting while riding a horse as fast as you can. Targets are baloons and rounds are black powder blanks.
Wild Bunch Action Shooting (WBAS): This is the newest sport under the SASS banner and is just now in its infancy. It's based off Sam Peckinpah's movie of the same name. (Remember the group of men who started SASS who call themselves The Wild Bunch. Guess what their favorite movie was.
) This is different from CAS in that it's a game for all you who hate mousephart loads. This is a big bore game. Required guns are Model 1897 pump shotgun, lever action rifle of .40 caliber or higher and a 1911 chambered in .45 ACP. Minimum power factor is 150. That's a 200 grain bullet @ 750 fps. That's a MINIMUM. Not what I'd call a mousephart. Lots of movement during the stages and lots of reactive targets. So flirting with the minimum loads will probably come back to bite you in the butt.
If you don't do anything else, at least go out and watch one of the three. If it's still not your cup of tea, at least you gave it a look. That's all anyone can ask.