I have heard this as a common reason for people selling their MVD tails. So I dont think you're alone.
I find silicone will get wrinkles no matter how good the fit, simply because it slides around when you're in the water. I have found that wearing tights underneath it gives the silicone something to grip onto and then it stays specifically in one place and will wrinkle a heck of a lot less. It's hard to get on with tights though, I find I gotta be in the water. And I gotta take my time and make sure it's on exactly how I want it because it wont move. Sometimes I dont have all the wrinkles smoothed out and I figure once I get moving it'll move anyway- nope. lol I have learned to just take the 10 minutes or so to get the thing on when I wear tights, and make sure it's smoothed out and exactly as I want it because with tights it wont budge

Hopefully that'll help you!