Thanks guys,
I rolled the car out of the shop and brought the rpms up to 1500 on the foot brake and hit the transbrake, it still rolled on me.
I did try something different i pretended i was staging and came up to the imaginary lights with very light pressure on the footbrake, almost none at all then set the transbrake. when i let off the footbrake there was no rollout. I'm wondering am i on the footbrake too hard when im staging? I'm thinking when the transbrake is applied the car shouldnt budge no matter what. But like I said I'm new to this whole transbrake thing.
Dave