I read a few threads on how to adjust the apron/saddle gib on the SBL 13, I went through the rebuild manual I bought online, still I am not sure whether I accept the procedure as the optimum. Basically, the adjustment is running the bolt against the split lock washer and let the tension against the washer as the only thing holding its adjustment Can't lock the washer solid or the apron/carriage won't move, so just play with how much to tighten the bolt against the split lock washer for best apron/carriage movement. I do not trust the lock washer system, I am thinking about getting socket heads with thread locker on them. What do you guys do with your SBL apron/saddle gib? Modified the gib system, or just stick with the standard procedure?