Adjusting the Saddle for Lumber Thickness

I can open it up and I can saddle the board an inch and a half this is actually a 2 in for actual or nominal lumber I can place it over my Ridge hips and valleys and slide it along and we've also put plates in here for torpedo levels so you can pop your line on your rafter tails the same thing you can go like this just as quick and Mark both sides as quickly as you would mark one