Had the Triumph slanted bags. Didn't know any better at the time, but the barely held enough for my daily commute and I quickly out grew them.
Have the K-Drive bags now. Love 'em. Roomy enough for a weekend trip for me and the whiff, plus the fact that they snap on and off the brackets means that a) no more scratching up my rear fender, 2) packing for a trip is a breeze, and d) washing the bike/chain lubes/tire inflation is all made easier.
"Every time I start thinking the world is all bad, then I start seeing some people out having a good time on motorcycles, and it makes me take another look."