A single-amp buddy of mine did the same thing, insisted on his design. He ended up with a rolling endo machine! Fell flat on his face so many times! He eventually pulled the elastomers out of his Froglets and filled the space with washers! Still flipped all the time. His nickname on the ball team ?Endoman?.
FYI They'll add length for Froglegs, also, iirc.
Seems like they have a stability target that they aim for regardless of the spec. If the spec works, great, but it really does seem as though they will tweak it for stability (safety).