Guns, Dogs and Blades QnA

Hi guys,
I know I need to try them in person, but, want recommendations.
Situation- we've got a HK VP9. Beautiful feel and performance. Fits my wife perfect, but a bit big for conceal carry. We fitted the backstraps for her, the grip is a little small for me..I have to consciously pull my trigger finger to first joint, or I push it left and down.
What's a good pistol in 9mm that, while compact (say comparable to a VP9S), has a larger grip (probably back-to-front dimension, if that makes sense)? Anyone know if largest backstraps on a VP9S are equivalent grip dimensions to a VP9 if it had those backstraps?

Thanks,
Steve