I was getting 19 in both Dawson and TTI extensions on 5 of my 35 mags, and had one that I could get 20. One mag had an Arredondo follower and it squeezed in 20 and sat fine, but had issues feeding reliably.
Have you done the follower mod yet?
No, I haven't, but I'm also selling that Glock now (so if you know anybody that wants one....) . I bought a Tanfoglio and the wife would appreciate me replenishing the bank account.
For the record, I preferred the TTI extensions over the Dawson. Never had a problem removing them to clean the mags, but the D.P. slide mechanism occasionally got a tad difficult to open.
Well, we appreciate that. Also, the tanfoglio platform has been catching out attention lately. We'll probably make a pad for it if it gauges enough interest.