Whats with the Spit E retention?

[gimpy117]

What does it take to bounce this aircraft? I bounced a Spit attacking a 110 with a 5000+ ft. E advantage, and he did the old spitfire loop on me and immediately had lead. Lets face it, He entered the same maneuver I followed with, and from a lower energy state ended up in a higher energy state. I wasn't worried about turn fighting with him, because c'mon it's the G.50!...but it seems this isn't isolated. I had a Spit on the edge of stall (actually he did go for a swim later, but i think he just didn't see the water) with his flaps down, yet he was still able to do loops and the like, something I could scarcely follow. I know I have less horsepower, yet I'm about 1,000 pounds or so lighter.

I'm just confused here...and I've noticed this flying the spit myself...what does it take to bleed serious energy from this craft? I've only found myself once stalling other than that pulling off hard turns is a baby frolic