Don't care for Comfo-bite or variants, myself.
Big ridge on the Scubapro hurts my upper gums after a few days.
Had best personal luck with the Atomic ($$) or any of the inexpensive knockoffs, as long as the knockoff's big hole doesn't change your reg's Venturi response. Both are soft and may tear over time at the mouthtube corner if your reg is heavy, from hanging before giant stride. But very comfy.
Big ridge on the Scubapro hurts my upper gums after a few days.
Had best personal luck with the Atomic ($$) or any of the inexpensive knockoffs, as long as the knockoff's big hole doesn't change your reg's Venturi response. Both are soft and may tear over time at the mouthtube corner if your reg is heavy, from hanging before giant stride. But very comfy.