20rd stick mags+32rd spring?

I bought some cheap ASC 20 rounders for my AR-9. The stock springs were too soft and failed to feed on the last few rounds. Ordered some Wolff extra power springs and while they stopped the sluggish follower, the springs were jamming themselves into the bottom of the plastic follower, causing the anti tilt legs to spread and act like a wedge.

So I've got some 32rd metalform mags, and when I put a metalform spring into an ASC body with ASC follower, I am able to load 20 rounds and the sticking follower seems to be gone.

Thoughts? Just wondering if anyone can save me a range trip if they know it doesn't work. So far, I'm thinking about following through.