Interesting so far. I'm not 100% on the acronyms but IFA - infinite frontal armor, and TFA - ..?
...funny my next project is an SU-76i
While it makes sense on a JT from a slightly more historical armor viewpoint the idea within the club is to promote the inclusion of tank destroyers with fixed guns, who would otherwise not want to battle because of the limited mobility on grass.
Hopefully I get some field tests and see what the folks battling against me think.