Howdy guys and gals..brand new to this forum. I'm going to buy an XDs in the coming days or weeks. This will be my CCW. I'd like to get your opinion. 45acp with a 5+1 or a 9mm with 7+1? I'm not scared of recoil and plan on putting in plenty of time at the range to get proficient with whichever one I choose. Cost and availability of ammo is a consideration. Thanks!