I have been using a Galco Stow and Go but given the vertical orientation, it has not been comfortable in the appendix or 330 position. It works well for the snubby 357s given the much shorter barrel. I have been experimenting wearing my Blackhawk Serpa, adjusting the canting angle at the 330 position with an untucked unbuttoned oxford-style shirt. However, I want the option to just wear my Polo style shirts, also, untucked.
I saw the crossbreed supertuck but that's a lot of leather material. I tend to feel uncomfortable with a design like that. With that being said, I want a smaller footprint that allows for something to be snug against me ITWB, has retention that won't lead to my gun falling out from activity, and feels comfortable. I was looking at the Galco Summer Comfort which appears to offer that.