I actually bought this for my 80 inch Mustang, it's being tested on the extra because I don't care about the extra, acrobatic planes just don't do it for me.
The last thing you want in a warbird is a deadstick or something unreliable, thankfully the pte has proved so far to be very reliable, not one dead stick, starts easily and just "works"
As it has the rear exhaust it suits the warbirds well, I'm surprised so many people are using them in acrobatic planes.
When I finally finish my 1/4 sopwith pup it will probably have a 36 as well due to it being able to swing a bigger prop well.

On the noise issue I find the dle30 too noisy for my liking as well, if you are of the same mindset a canister is the way to go.

Would I buy another one?
So far the answer is yes.

Regards Mark