I’m not referring no one wallet. This idea is a little abstract, I need to think more about this. 

> we can adjust mempool part, where user’s choice fee currently

I definitely agree, do you mind being more specific? Are you referring to a specific wallet?

Design_r

We’re early with SP. We can do better with UI/UX, mainly without need introduce new concepts. I think we can adjust mempool part, where user’s choice fee currently, avoiding major issues as you mentioned above.