If the joint tastes good, with a defined flavor profile, that's a good sign. It should taste similar once burned. THCA is the cannabinoid that is the precursor to THC, which we all know is causing us. THCA is converted to THC through heat.
That's why, when you burn an infusion pre-roll made with THCA diamonds, as soon as you turn it on, the THC content skyrockets.