Sealing an ASW 28 canopy

After seeing the thread about the PIK canopies I wanted
to ask if anyone had taken any extra ordinary steps
to seal an ASW canopy. To date all I have done is
to put some sticky back foam at the front near the
demist vent. It is pretty good but I suspect it can
be better. I have heard that it helps to run the same
foam all way around the fuse in the depression along
the canopy opening. Thoughts????

Bob