After finishing my G21, I decided my G17 needed the same treatment. Taking the learnings from the G21, I applied it to the G17 and it came out "sweet"! Now, I'm thinking of tweaking the G21 a little bit to make it exactly like the G17. Hope you take the plunge and try it yourself! Its worth it. Worse case scenario, you send it out to be redone.
About my HK 416 in 22 LR.