Disregard those SR9 trigger tests I posted between Stock, Polished and the Rocket from Ghost, reminds me I need to remove them from my videos. There were too many inconsistencies and I have much better results from a test I recently did. I'm having to find more time at home now to get videos done though. Recorded, just not finished on the editing.
I will say that my Ghost Rocket trigger was a nice even 5 lbs. From a vise, with a band on the trigger to keep the blade in place and to give the gauge a positive stop to pull against repeatedly. Polished came in 2nd at about 6 lbs even and stock was about 6 lbs 9 ounces. The differences between pulls were down to 2-4 ounces at most, and that was with the Stock reset bar, the Ghost Rocket had about 2 ounces of difference in the pulls, very consistent in comparison.
It's your money, get what you want. Most guns are upgradeable. The SR9 though doesn't have many options for internal parts in the aftermarket sector. Glocks can be tweaked in many many ways. But you don't like the grip, the 17 is bigger than the 19, but only in length, not the width or bulk of the grip. In that respect they are the same.
Glocks are good guns, so are most Ruger SR9s, as are most Sig's and CZ's. A few people here might even argue that most is an understatement on some of the brands mentioned. I'd look into the Sig SP2022, it's affordable and a good gun, and any CZ you can find that you like should be looked at. The number of CZ owners here on RF.com seem to be growing in recent months, there's quite a few owners that have more than just one.
I vote SR9 out of the two guns, but for similar money for the Glock you could find a good SigPro gun or a nice CZ that you might like as much or more.
You shouldn't have to upgrade a gun to get it where you like it.
Josh