Re: Double sided printing - anyone using it?
I don't have any issues with double sided printing, using ordinary 80 gsm copier paper, on my (Brother) laser printer - despite the contorted paper path.
My Epson R800 (with a paper path which is very close to straight) does however leave nasty roller marks on the "first printed" side if DS printing is attempted, and there is also a tendency to get black marks on the edge of the paper. Not that it matters much for photo use, as photo papers are only coated on one side.
I have lots of star charts which have been printed double sided and then laminated for use outside. If one seed needs to be (or would be better) printed in colour, I print that side on the Epson then print the back on the laser. If both sides need to be in colour, I print two sheets single sided on the Epson, place them bac to back and laminate as one piece. Of course the colour printing in this case is diagram rather than photo quality.
If you're not living on the edge, you're wasting space