Thanks, this link has helped. Although i think Ryobi must have discontinued the HX & HXX and replaced it with the GX. The GX runs faster and can take a slightly thicker sheet than the GE
May I ask, are you looking at buying a Ryobi? I've ran 2 Ryobi presses from new and although this was a few years ago they're probably the last press manufacturer I'd turn to.
I'm not saying I'm the worlds expert on them but having run 2 from new I was really dissapointed with them. Terrible repeat ghosting through the print, electrics had a mind of their own as did the 30 000 pound Automatic Aqua Control system upgrade which luckily we got for free as we eventualy turned it off as it never worked properly. Engineers were clueless, back up service was worse than useless, spares department were arrogant to say the least and never of any help. You get what you pay for. It's like comparing Komori & Heidelberg many years ago, Komori were nowhere near as good as the Heidelbergs, now they are pretty much equal but Ryobi is years behind. You get what you pay for. Ryobi do however make nice fishing reels!