Grand power x-calibur or x-trim both have multiple back straps for different sized hands and are pretty affordable for what they are. Plus they don't need to be sent out to be upgraded like cz and tanfoglio. I researched for months before I decided on the x-calibur for my first competition gun. I figured I could spend $800 on a gun and have it basically ready to go or spend $1000 on another and another $500 ish to improve/customize/upgrade the stock 2 or cz shadow with upgrades. Since I wasn't sure how much I would get into competition shooting I went with what I did and so far I love my xcal and glad I picked it. Hope that helps!
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