I've got a judo tournament in early May for which I want to be strong, quick in my reaction time and strength output, and in condition. Since it's still pretty far in the future, I'm working on strength for the moment. My judo training is year-round, so this is about my supplemental strength & conditioning training.
When should I switch from strength to conditioning? Should it be a slow transition, keeping some strength work, or an abrupt and total switch?
Background
My high-bar back squat is my current primary strength project. I am currently squatting singles of 270 pounds (122.5 kg) at a bodyweight of 175 (79.4 kg), and triples around 250 (113.4 kg) , but would like to hit 300 (136 kg) if possible before transitioning. I'm deadlifting at 370 (168 kg) for a comfortable 1RM and 390 (177 kg) for a not-quite-good-form 1RM, and would like 405 (181.4 kg) before transitioning to other work. Upper-body work and the quick lifts are on rehab duty, so I won't bring them into this. I fully comprehend that the 300 and 405 goals are not necessarily possible in that timeframe, nor ideal for judo.
I can do a twenty-minute lifting or conditioning session on my lunch break, which I generally do two to four times a week (usually 10 squat singles or working up to a heavy 3 or 5 rep deadlift). I do longer lifting-plus-mobility sessions once or twice a week and can train judo one to four times a week.