Got a bottle of TPA Red Bull... been trying different mixes/ratios... (10%, 15%, 20%... 70/30, 60/40, 50/50) at 12mg nicotine. Problem that I am running into... loss/drop off of flavor. The bullish flavor is kinda there on the first draw, maybe the second, but then it just seems to fade away into obscurity... not like flavor is missing, but not distinct at all... just kind of meh. Has anyone else had success making anything enjoyably vapable with this flavor? Any and all input welcome.