I absolutely feel that some transfolk can find themselves overcompensating for their biological problem, at least earlier on (during transition for instance).
I've got the luck of having a partner that pokes me, in the bloody ribs!, and lets me know when he sees me doing some "out of character" male posturing... and it does happen at the very least once or twice a month. (I'm sure it would happen a lot more often if he were on this forum too, and I've told him he can come hang out here, but he just doesn't have anything to say so... )
The thing is.. I'm not aware of it, not consciously anyhow, until pointed out. And once pointed out, I feel a little silly about it since, well, Men come in all sizes, colours, and flavours! Why would I feel the need to fulfill an out of character role to be one?