My first mag rattles also with the TTI followers and springs but allows me 21 in first mag and I barney the first round to start with 22 rds. All they do is run and have never had any issues with them. But it does sound a lil funny hearing them rattle. They are also tuned mags.
We have a USPSA match on the first Sunday of every month with a steel match on the 2nd Saturday of the month at southern shooting center in Thibodaux. The Gator Classic is also right around the corner and will also be held there if you are interested on Oct. 24th thru the 26th.
I just got a call this week from powder valley, since my order has been on back order for a year now they wanted to know if I still wanted to keep it or not. I've been getting my components from other connections.
My Akai gun is STROKED and is super fast and very soft shooting, built identical to Lesgar's , don't really think you would need it in 9mm though. I also have a 6" built in 9mm that I use as my steel gun and is a very soft shooting gun.
5.0 or 5.2g of WST at 1.170 to 1.180 should get you Major, in my SVI barrel i'm getting right over 900fps. In my Briley getting a lot higher because of a faster twist, around 1000fps.
Try Warren Tactical's new rear Bo Mar, I have one on my Akai and Tripp gun and love them, the corners on the rear blade is curved like the SVI but softened up.