Hello everyone!
After a few days of testing ( i can only do so much as its been pretty warm here) i've come to the conclusion that this jacket will be a valuable asset in keeping warm when the temps start dropping and im up in the tree. I base this on different layering systems i've worn in the past and the fact that this jacket provides 3 different settings, it certainly does seem to keep the heat in! This jacket heats up fast and should keep the chill off in the early bow season and i cant wait to try it come late Oct. and through Nov. I think that the medium heat setting will be about right in those months which should also let me get away with wearing less bulk and packing in and out more clothes. I will continue to test this jacket throughout the bow season and post my findings here. I would recommend a 2nd battery, just in case!