Yes, always use the best tool for the job. BiaB does some things best, other tools (including RealBand) do other things best.
You can hammer a nail in with a wrench, but your hammer is better for that purpose.


BIAB & RB2025 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones