bubble hash..

should I freeze my dried/cured flower before making bubble hash or just wash it dry as is?

Freeze it, and everything that you plan to use. The goal is to keep everything as cool as possible.
Another way to go is to freeze the material as soon as you harvest instead of drying it first. Fresh frozen will preserve the terpenes more.

yes, freeze it before washing so it's as cold as possible. Make sure to let the bud rehydrate before washing for about 20-30 min in ice water before washing.