Yes, I stack both Monero and Bitcoin. I couldn't tell you an ideal split. It would just be speculation. What I can say for sure is that Bitcoin has proven to be a better longterm SoV (so far).

Because of it's default privacy, simplicity, and very cheap tx fees I find myself mostly using Monero. It's a superior MoE. Too expensive, clunky, and potentially harmful to use Bitcoin all the time especially with coinjoins.

They complement each other well imo.

Glad you find my info useful!