I'm 4 days into a jar cure with one of my Durban Poison plants and with burping, it's already losing the hay smell and taking on a more fruity pleasant aroma. Before it was ready I took some lowers early and did a sloppy 2 week dry and cure with a Frisbee and a jar and while it didn't have a terp smell, once it got a little cured it developed a nice a pine or cedar taste. I'm looking forward to trying the properly cured batch.
My take on curing is if you can get them in the jar when theyre still a little wet, you get more terp aroma but you have to be really careful about molds and mildew if you don't slowly get it drier over a couple days. For example, RH leveled off at 80% in the jar. That has dropped to 65% with 3 days of burping. When it hits 62 I'll throw a boveda pack in the jar to keep it there so burping doesn't affect the RH. If you don't have boveda packs and you are losing RH every time you open the jar when you don't want to, take a couple slow deep breaths into the jar right before you put the lid back on. I've had success raising RH 1-2% using this hack on quart size jars.