Mixing other concentrates with my distillate and terps?

Hi,

I’ve recently had success making distillate + terpene carts for personal use, could I make these even better by adding maybe 30% of live resin, bho, shatter etc? If so would I still need to add terpenes? New to concentrates, the ccell cart I have just made was done using a mugwarmer at 60c for a short period. Do I worry about crystallization if I were to add these? Do they need decarb? Any advice is appreciated.