I read this the other day:
http://dangerousprototypes.com/2012/09/29/pcb-manufacture-using-oracal-vinyl-film-laser-printer/My results were SIGNIFICANTLY better than with the Pulsar paper, and I am getting results identical to my best photo transfers. I am Andrew in the comments.
I link, in the comments, to the specific vinyl I used, but if there is interest in this group, I will re-try the same experiments with vinyl purchased from Amazon that features Prime shipping. I have lots of vinyl laying about, and can likely find some.