If we agree that there is a significant physical differences in these versions and we already have a modifiable model why can't we get another one modeled after the more sucky Brewsters and call it good?
I've said this before but...I doubt even that would end it, it could even add to the fire. Based on the comparison that I've done to the technical specs, for example light loaded F2A-3 isn't all that far off of a F4F-4 (power loading is actually better and wing loading is heavier but not by much) and will still have much better control harmony and roll rate for example. The reasons why Brewster was eventually canned are mostly elsewhere than in strict flight performance, which is the emphasis here.
Brewster Corp. wasn't exactly a well managed company. Brewster Corp's separate selling organization called Miranda Brothers was a source of problems. They had been found guilty of illegal arms trade in the spring of '40 although that particular incident wasn't connected to Brewster Corp. This selling organization made the Co. of the Brewster Corp. sign deals which they didn't have the production capacity for. As the orders and the company grew fast they took on labor force which was bit on the shady side and due to this even sabotages occurred. In one of these incidents F2A-2's arrestor hooks had been deliberately weakened. I'm sure you can imagine that something like that didn't exactly add Brewster's points in the eyes of the Navy.
All the above happened largely after the Brewster B239's were delivered to Finland.
Then there were the technical problems which made F4F better suited Naval fighter:
- Brewster's landing gear didn't withstand carrier use well. They tended to collapse quite easily and the fact that the take-off weight kept creeping up with the later variants didn't exactly help either. This wasn't a similar problem when operating from land bases. There were couple gear collapses in Finnish use but not many.
- The wing was a single piece unit with a single continuous spar. When damaged it was very hard and slow to repair and it really could not have been made foldable without more or less complete redesign.
- Those self sealing tanks which already have been mentioned.
- F4F was more rugged airframe and based on my experience that is the case in AH. Again, only my subjective view regarding the matter. If someone doubts it, you can test it.
- Twin wasp generally was more favored as the fighter engine over the Cyclone in the US military circles.