I think the lack of responses speaks volumes!
I'm sorry I haven't logged on in a while. I'll respond to the original poster's question.
I bought a standard Kangaroo Carry several months ago. Austin Davis replied to me in an e-mail (after purchase) that part of the fun of owning the holster would be to figure the best adjustment for my particular needs. He was correct.
I normally carry either a S&W Model 637 revolver or a Gen 4 Glock 26 in my rig. Either handgun conceals very well under my left armpit. I usually prefer to wear Wrangler snap-button shirts, and although I'm relatively skinny, the guns do not print through the shirts.
As stated in their advertisements, the Kangaroo Carry is washable. However, since the un-bleached cotton must be air dryed, I am going to order a second holster to wear while the other one is being laundered and dryed.
I had my doubts about the set-up staying in place during daily activities. I have found that once one adjusts the holster for proper carrying, the gun and holster remain in the same spot for the duration of the day.