I'm curious, is the Backburner worth the loss of the air shield from the normal flamethrower?

+50 health is a nice boost and will bring the pyro up to 225 which is slightly more than a soldier's 200. However there's something just beautiful about air bursting a demo man's stickies and grenades back at them. The stickies don't detonate until they loose the blur affect from being blown and the grenades turn coat immediately once hit and detonate on touch against anyone not wearing the same color as you. Best part about blowing grenades on the ground is since they change color they also do no team or self damage.

The soldier always gets a WTF expression when you blow their rockets back at them and I was also playing around with readjusting rockets around corners or into dodging targets. Takes a bit of practice, and a lot of luck, to get the air shield just right in close quarters, but doing so will almost certainly kill/seriously injure the soldier in question.

The last two projectiles that can be bounced would be sentry rockets and pyro flaregun grenades (I missed those BTW since pyros had them in classic Team Fortress). The flaregun grenades will change color just like demo grenades, but since they don't have splash damage its harder to use them. Handy to defend snipers or long range attackers from a badgering pyro though. Sentry rocket bounce is just a thing of beauty. Since the sentry fires 4 rockets that do a 'tad' more damage than a soldier's one the splash damage is rather nasty. With a bit of juggling around corners you can get the sentry to kill itself while only eating a few shells in the process. Again, just like turning demo nades and soldier rockets because it registers as your team's rocket barrage it'll no longer do any splash damage to your team which is so very nice.

Personally I especially love bouncing the sentry rockets around corners because they're easy to predict.