I posted this awhile back but there is huge differences in teaching/service responsibilities across 3-3 schools. Some are 3-3 but it’s something like two sections of principles and one upper division each semester so you only have four preps total when up for tenure. In addition, you only hold two office hours total and can do MC tests for all grading. This along with only 2 hours a week of service and you could end up with more research time (but less resources) than profs at R1s.
Then there are awful 3-3 schools. Think SLAC with ridiculous teaching expectations, tons of preps , and a lot of time devoted to service/student engagement. This second type I would wager is impossible to escape.
The problem is when you are on the JM schools lie about what type of 3-3 they are.