Yes, Derek's good. Got my heads done on time when he said he would. Turned them around pretty fast.
I had the volumes set, reprofiled and had detonation rings fitted. One of the heads had a fair amount of damage where a bit of broken ring had gouged it.

I went over to his place to drop off and pick up my stuff. He likes you to call him first if you're going over.
He's quite busy with BSB around those weekends too.