Martin: I pestered you on the phone for a while this afternoon, for which I apologise. But many thanks for your FO. I now have a year's supply. Your words on pd/pt were also very encouraging.
John: Your question on Permajet. I spoke to them about a month ago, and this was their response: Permajet OHP used to be made by Pictorico (the box with the cheap-looking A5 data sheet in). However, pigment inks were not conducive to this material (???), so they changed manufacturer to a Chinese company. The new Permajet OHP is very different (and has a nice-looking A4 data sheet). It is (very) non-static, slightly more opaque and has a right-corner clip instead of a left. I have tried one box of this and although it required a new curve, I think it is very good. However, I have nothing to compare it against so I can't tell you whether it is better or worse than any other material available in the UK (Copyjet, for example).
As far as I'm concerned, it's worth a go. I think it is good: holds ink well and the tones are very smooth. Just my opinion.
Cheers
Geoff
Edit: Apologies if my last paragraph regarding OHP offends. More hybrid, I know.