that would be the reason i did post it as depending on

dynamic will 1000000% kill any mapping that was done it is used as an initial sculpt tool that can be retopo'd later

the subdidvision is designed to work with the mapsbut can be a bit hinky at times if you go too far with the sculpting

you could add loop cuts manualy without effecting the maps too much

but for general sculpting the base mesh needs added geometry if you use a simple primitive