I'm getting ready to build an overarm guard with dust collection, for my table saw, based on the design by Gordon J Sampson.

I would like to be able to lift the guard higher than that design seems to allow, in order to make blade changes a little easier. However before I start experimenting I thought I would ask if anyone has made a guard like this and if any of you have a design that enables the guard to lift higher without sacrificing stability.

Thanks
JC