I'm not sure which part of the movement creates the issue for you, whether you're catching it in a squat, or if it's the long full extension pulling from the ground, but I used to love teaching a power clean backwards, from the hang position at a modereate weight. probably 135-155 for you. a weight that a person can fake once or twice, but then HAS to use form for on a set of 5-10+. I always thought certain movements like the clean were interesting because if you have shitty form you'll hit a wall, you get to a point that you have to have good form or its not gonna budge (make sense?)
anyways... my point there was if the full clean bothers you, and it interested you at all, picking an 8-12 rep weight like 155lbs or something from the hang position might be a nice alternative for that explosive pull with in theory less stress on the ACL but pretty darn good shrug engagement. of course YMMV, if you respond better to sets of 3 or 5 or whatever. most oly programs are similar to PL in my experience, 3-5 rep zones. but I never lacked hypertrophy doing wods that called out 10-20 reps of a moderately heavy clean. Crossfitters I felt always had retarded big traps compared to other gym rats.