I have a couple of old STI mags that can do 17-rounds reloadable. Recently, I bought a new one. Finish is much slicker compared with my 5-year old mags. Follower is new-style. The mag-catch hole is also bigger. I installed an old TP-base pad, and capacity is only 16 . I tried the red arrendondo follower (also old). Though I got 17, yung follower umiikot yata sa ilalim. When I cycled it, nag-stick yung follower sa ilalim, at nag-'jingle-bells' yung mga bala. I have an extra SVI follower, but I'm not comfortable to use it, para madali lang mag-fly away yung follower. BTW, yung new follower wont fit on the old bodies without modifications. Paki-share naman ng ideas on how I could maximize this new STI mag? (17 rds - reloadable) Thanks.