Homebrew PCBs

Greetings,

I'm rounding up tools and materials to try my hand at making PCBs. My
intention is to use the Pulsar method. I have obtained a GBC 9"
Personal Laminator, but it seems that 1/2 oz. 0.032" clad boards are
very hard to find. After much googling the only source I've found is
Digi-Key, and they're currently out of stock.

I'm wondering whether anyone has tried feeding the thicker 0.064"
stock through the GBC Personal Laminator. I've spent a good deal of
time reading the archives of this mailing list and while I've seen it
mentioned several times that feeding the stock in corner-first helps
with thicker material, it isn't clear to me whether anyone is doing
this successfully with this laminator. I noticed that the instructions
say that the maximum pouch size is 5 mil, but I don't know whether or
not that tells us anything useful.

I might just try it myself, but I thought I'd ask here first before I
run the risk of gagging my brand-new laminator. 

Alternatively, has anyone tried the sponge-etch method with 1 oz.
copper stock? 1 oz. / 0.032" stock seems to be readily available.

Thanks in advance for any replies.

--Adam