Board Thread:Versus Debates/@comment-27233105-20160130092635/@comment-26369387-20160223211940

@QuakingStar Correction: Minato said he RARELY used the Sage Mode. It doesn't mean same as never using it.

Also, while Minato has never combined the TBM and SM in canon, it certainly wouldn't be impossible since in that same canon Naruto showed that it's possible.