Summonings?, lets see what sasuke has genjutsu used to control manda.
If sasuke gains control of a frog that jiraiya has summoned and gets into his stomach to try and get into sm, sasuke can control the frog and tell it to swallow jiraiya
Danzo nor kakashi were able to evade susano arrow. Jiraiya in base is slow if you add the fact that in his sandals he is even slower be isnt evading a susano arrow and neither is any of his summonings.
Amaterasu on the fastest attacks in the series, even in sm jiraiya;s speed is inferior to A in v1 raiton let alnoe v2. Similarly summonings are easy target for amaterasu as we saw with the 8 tails and Cerberus.
Sasuke's lighting release attacks. We saw one cut clean through the 8 tails tentacles, with this he can easily slice up any summonings jiraiya has to offer.
Tiajutsu is out of the question unless jiraiya wants to lose an arm, like A
MS sasuke >>> jiraiya