Remember that Standard Transit allows any size of a TG to traverse a JP, as long as there is a big enough jump engine on one of the ships. This is useful for peacetime transits.
Squadron Transit shortens the blindness period but only allows the number of ships that the jump engine has been designed for. This is useful for combat transits.
Reallllyllylylyyly. So ive been wasting hours, splitting up my combat fleets that are just trawling into systems that i know theres no danger, so they can fit into the 4-5 squadron limit of my jump tenders. wow.
Back onto topic, on the note of doing ships loaded with mines. 1 of my thoughts was always A large ship loaded with as many box launchers as possible. Jump it into the system 5 seconds before the rest of your fleet, and dump all the mines it has (do a mix of antiship missiles and size 1.5 amms, need space for the sensor after all). Even if they blap down your cruiser, in a few seconds, all those mines will go off supported by the weapons of your main fleet