Homebrew PCBs

> yesterday and they offer a positive photo-etch package from Datak that
> is supposed to only need a 100-watt incandescent to develop the
> resist..  Has anyone used this product before and if so, what were your
> results?

I have a little experiance with the Datak positive photoresist boards.  I
followed the enclosed instructions to the letter (I also invested in an
exposure frame), used a standard incandescent bulb for a short exposure (couple
of minutes), and voila, very nice board.  I've done a few; one was flawed by
overetching, but I wasn't paying enough attention...
Cheers
Fred