So I think I want a 10mm for the heck of it. I have 9 and 45 and would like to find something that I can carry on some days in 10mm. I would like to be able to put an optic on the top such as a Trijicon RMR. I would also like to add a CrimsonTrace grip, which I know is not necessary with the optic but would really like at lease one of the two to be options. As best I can tell the Glock, XDM, & Sig are my only real choices non 1911. I am leaning toward the Sig but have yet to hold one. The Legion seems like the way to go but I would need to get the slide milled and spoke with Sig today they do not do that because their Sig red dot optic is not up to the task of the 10mm cartridge. I already have a XDM 9mm so that would be 2nd choice and Glock which I have owned many would be my 3rd. Has anyone shot any of these in 10mm and could anyone offer up other choices?