I am happy to report we are almost there. My 3 year old is doing really well with potty training. He never poos in his diaper anymore and for the most part his pull ups are dry throughout the day. We haven't started underwear until he keeps the pull ups clean throughout the day. The candy works great as incentive and for poo he gets a frozen pop. I found some great fruit/veggie pops that the kids enjoy so we use them for special treats. Love when I find something that sneakily gives nutrition to my kids.
Current update: He still never poos in his pull up but peeing he still hasn't totally mastered. Hoping he will be ready to have underwear soon. We are SO close.