[G6Tanuki]

There's an idea.

I suspect that the difference in currents would be pretty small.

Equally, eachg transformer has two secondary windings that can be wired in series or parallel; I doubt these are bifilar-wound, hence in a given transformer one secondary winding will be closer to the core [and have a shorter length of wire needed to get the required number of turns] than the other seconday winding - meaning that wiring the two secondaries in parallel will surely introduce some sort of current-imbalance between them under load...?

Perhaps I'm just overanalysing this, like when the audio-types measue the resistances of the two halves of a push-pull output transformer primary and go into a panic when they find they are different!