My Parkerized Champion came with 2 7 round mags. 1 worked fine, the other had occassional feeding problems due to a weak spring.
I was placing an order for CMC Shooting Star mags anyway and ordered 2 of their 8 round conversion kits (spring & follower). Since then there have been no problems what so ever.
In my opinion, you'd be fine ordering the SA mags. Springs need to be replaced from time to time anyway and I think we all accept that. Wolff makes a +10% mag spring that's been great in my experience.