Homebrew PCBs

Anyone see these extra bits of photomask after developing?

http://www.delorie.com/pcb/inkjet/mask-bits.jpg

This is at 200x, the gap is only 6 mil.  I've tried extra developing,
rinsing under high-pressure water, and scrubbing with a sponge.  I can
get them out one at a time with a pin, but that's not an acceptable
solution.  I'm even exposing a step less than usual in case it's from
a pinhole.

(if the above url complains, use http://www.delorie.com/pcb/inkjet/mask-bits.html)


Also, I discovered that my laminator is too hot for this film.  If I
run a heat-gun-heated board through the laminator, it comes out all
bubbly and wrinkled.