Lok grips recently allowed me to try their pre-production grips for the A01. I've got to say, they really knocked it out of the ballpark. I had very little constructive feedback. The grips are darn near perfect as they are. I believe they are going to relieve a bit of area around the mag release for production, but that's it.
I think they should be available on their website soon.
https://imgur.com/a/vQLL6s1