Hi,

 

Which size of regular neoprene cover fit on the WACP 1?

Has anyone experiences with that?

Listening in, I find the Plastic cover great for on the boat and for travel but annoying to take underwater so interesting to see if anyone has a better off the shelf solution 

I use an unsightly DIY neoprene hack-and-sew-job from an old wetsuit...

You could try these, they make them to order and not overly expensive, I had one made for my Zen 170mm dome:

 

https://bennimd.com/products/custom-dome-port-covers