Assuming the model s master is the same as my model y master I put on my 80, there is no adjustment between front and rear bias. You could plumb in a manual valve if you wanted, but mine seems pretty well balanced and lock up evenly/ predictably.
I think i was premature.. in trying to find a reasonable price, I realized there's nothing really I can get that's as reliable or comfortable for the price... all roads lead back to a land cruiser, so I'll keep it around
Yeah now thay things have calmed down from the holidays. I can't to any Tuesday or Thursday though, but could grab a bite to eat most other days of the week.