Terry, What you do not want to do is cut grooves across the top of your plate. I would route small housings on the inside of the plate no deeper than 3/4". This housing will help keep the rafters standing and give you a positive layout as you assemble your roof. Uplift should be a concern so I would recomend using Oly log screws to attach the rafters to the plate; or use a Simpson A34 clip and nail them down. Pre drilling and laging them down is great but takes alot more time.
I see no advantage to moving the rafters to allow for your 1" strapping.
Bake
