Phil Ledgerwood does a nice mod to the current plastic cowl with what looks like some black plastic door frame trim. I picked up on it when we went to look at a car there. You can just about see it on the photos he has of the cars for sale on his site. It's a relatively inexpensive mod that covers up the exposed plastic edge of the cowl nicely. I don't know why he factory doesn't do this as part of the original build really.
