Dick - here are some pics for you - not good ones because self taken and always have to use boring old flash ... but should give some idea.
First is my R9 in Kevin's small belt slide .. this is probably about 10º or a little over - suits the gun just fine. Meant to add too - there is another belt slot at front so - easy to fit it with steeper cant if I want. Ever so easy to hide... and saves any drag in a pocket. T-shirt draped over does just fine.

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Then we have my SP-101 in the original Jim Burke - as you see plenty of cant and for the SP this is just great - more like 20º but for a small revo this is just great for me - it is so snug. This rig is pretty well sweat stained!!


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Next we have Kevins very attractive Burke copy he did for me - same gun, pretty much same cant altho this being more ''side-on'' shot almost looks more - still about 20º tho and notice how grips are pretty much over muzzle - very compact and free from printing and draw is slick as you'd wish. I have just noticed - see belt? This is not level and it makes cant look exaggerated.

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Lastly - my present main carry - the SIG 226 - in Kevin's superb piece of work. Notice here cant is much more around the ''std'' 15º or so. I'd not want this to be much more because of the gun's profile - it does tho allow it to sit very well.... nice compromize.

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Many folks Dick do use and like IWB - but it ain't for me! I do have more padding than once but - find I do not like the pressure of gun and rig inside my pants - bony contact - plus just cannot seem to adapt to larger waist size needed for pants. Oh and sweat problems too - major issue!
So - IMO - if a good choice made with a pancake, belt slide type of hi-ride rig, then for me anyways, concealment is no problem at all, and I am pretty comfortable. Remember - I carry all waking hours.