Hey guys, Starting in September I'll be in University and my schedule will force me to stop taking BJJ for my first semester (my schedule and my BJJ school's schedule conflict, and money will be tight for the first semester). After that my schedule opens up because of the amount of half courses I'm taking. Anyway, have any of you ever had this or something similar happen? I'm wanting to stay in shape, so I'm planning on working out as often as I can. Is there anything specific that I should be doing to stay in decent grappling shape? I find that grappling shape/cardio is different from the cardio you get by riding a bike, for example(and for obvious reasons). I know that shadow rolling to work on technique will be about all I can do to stay sharp that way(lots of visualizing, lol), but what else can/should I do?