Try Talon grips on it. They made a world of difference on mine.My thoughts on the XDS:
What I like about it:
Amazingly compact design. You would think it's a 9mm not a .45.
Fit, finish, operation are all excellent. It looks, feel, and works like a high-quality firearm, which it clearly is.
Hits the target and has been 100% reliable.
Very concealable,
What I don't like:
Small grip only gets two fingers. My hands are not overly large but it's a bit hard to keep a firm grip on when firing. Makes it hard to get back on target for the next shot.
5+1 capacity is a bit lower than I'd like. Carry an extra magazine if you think you'll need more than 6 rds.
The grip is very agressively stippled. Hurts after an hour or so of range shooting. (but help with grip so it's a tradeoff.)