Trimui Brick SNES Grip

I designed a grip from the Trimui Brick. I wanted something that felt more like a traditional SNES controller. I printed it in PLA and it turned out great. The device fits in there well, it's not too tight but is snug enough once it's fully seated. The grip is open at the bottom so you can access the charge port and the headphone jack. I printed it laying on it's back and used tree supports for the opening on the bottom. Any ideas for adjustments are welcome!