I use that exact holster with a full size 1911. It works best for me on my side with a belt loop between the holsters slots, it holds the grip a little closer that way. I also use a fairly thick belt with it. It does however hold the gun low on my waist so I wear a reasonably long jacket jacket to cover the gun. The gun stays in secure enough for most activities and it makes for a quick draw. It gets a little looser by the end of the day, but it is still secure. I also have a Ruger P90 .45, I rarely carried it, but when I did the only holsters that seemed to hide it well were in the pants types. I have a nice Galco paddel for it, but the Rugers are so chubby that you need to wear a winter coat unless it is in the waistband. On the plus side they work great mine has been very reliable, shoots fine with everything I ever fed it.