Funny, I had the same result with my Q5. Felt worse after polishing. In the 5” standard I bought as backup to Q5, I just let shooting take care of it. Also Q5 okay after shooting a bunch. Both fine now.
On the Gen5 frame on the right side where material was removed for the ambi slide release, it left the frame very thin. Does anyone see that as a problem for a heavy use gun like for SSP/Production? Or am I over thinking this.
I went with IPSC box standards for 126mm. Per Dawson, they're only held in place by the spring. Have you had any trouble with them coming off? They don't seem as secure as stock plates. Slide back a little.