I've had failure to feed issues every single time I fully loaded my two original mags. At least one FTF every single full mag I shot. If I only loaded the mag half-way, it would work 3 mags out of 4 without an FTF. I sent one of my mags in to Taurus about 12 days ago. I only sent in one, so I could still shoot at the range while I was waiting. 
FYI - I had already tried all of the quick fixes I had found on this forum, like replacing the mag springs that are made for a Para-Ordnance P12, nothing worked for me. Maybe it will for you.
I just got the replacement mag in yesterday, and went to the range to test it out.
I shot 84 rounds through that mag last night with great results. In fact, I had one single FTF, and it was the first mag, which I accidentally loaded with 6 JHPs and then 6 FMJs. After that, I shot 6 more full mags, 2 with 230 grain Remmington JHPs, and 4 with 230 grain CCI Blazer (not Blazer Brass) FMJs, and 1 230 grain CCI Blazer Brass FMJs. That was all of the ammo that I had, except 12 of the JHPs I kept for my concealed carry. I may have been born at night, but it was not last night!
I even shot the Blazer (non brass) as fast as I could for an entire magazine - no issues at all!
So people, believe it when you read it. Taurus Customer Service sent me a brand new, still in the package 12 shot 24/7 Pro magazine and it works flawlessly. In the same gun, cleaned the same way, with a bunch of different ammo, all ammo that I had tried in the original mags. The magazine replacement really can fix your FTF issues.
I am going to send in my other mag asap. I'll post again when I get it back and try it out.
FYI - I had already tried all of the quick fixes I had found on this forum, like replacing the mag springs that are made for a Para-Ordnance P12, nothing worked for me. Maybe it will for you.
I just got the replacement mag in yesterday, and went to the range to test it out.
I shot 84 rounds through that mag last night with great results. In fact, I had one single FTF, and it was the first mag, which I accidentally loaded with 6 JHPs and then 6 FMJs. After that, I shot 6 more full mags, 2 with 230 grain Remmington JHPs, and 4 with 230 grain CCI Blazer (not Blazer Brass) FMJs, and 1 230 grain CCI Blazer Brass FMJs. That was all of the ammo that I had, except 12 of the JHPs I kept for my concealed carry. I may have been born at night, but it was not last night!
I even shot the Blazer (non brass) as fast as I could for an entire magazine - no issues at all!
So people, believe it when you read it. Taurus Customer Service sent me a brand new, still in the package 12 shot 24/7 Pro magazine and it works flawlessly. In the same gun, cleaned the same way, with a bunch of different ammo, all ammo that I had tried in the original mags. The magazine replacement really can fix your FTF issues.
I am going to send in my other mag asap. I'll post again when I get it back and try it out.