Board Thread:Boruto Discussions/@comment-3568954-20180202001409/@comment-734582-20180210121155

BlazeRelease wrote: Plus, Minato(who also summons toads) also admitted to being not perfect with Sage Mode, even though he was a prodigy. Yet he did have Perfect Sage Mode, so clearly he was competent. I think it's just like his elemental rasengan, he simply died before he really could develop it fully. (note that his complaints are similar to Naruto's first SM usage: limited time, too long to charge)