--TSA pre-check is usually very quick at MCO. 10 minutes is probably the most I've ever waited.
--JetBlue check in with bags at MCO is abysmal. Really/really bad, and overall uncharacteristic of the JetBlue brand. First of all it's a little confusing as far as the lines go and about 25% of the time the regular line moves faster than priority...sometimes I've found that I have to advocate for myself when I'm in the priority line because it's like they forget the priority line is there. I'm Mosaic and I still budget budget 20 minutes for check-in. Non-Mosaic I'd budget 30-35.
--There has also recently been some construction going on and the little subway system trains don't run as frequently as normal. Budget 15 minutes for that just in case.
I fly out tomorrow (Monday) so I can give you an update.