As promised I'm back, and with an update on the PSI S2x.
I should start by saying thank you. You mentioned "blind scan" earlier which is something I'd never even heard of.
I'm used to manually adding transponder info (from Lyngsat) when searching for satellites, and have done it this way, with the Dreambox, for years.
Not just for dishes in fixed locations, but also when motorhoming around Europe. Blind scanning will now save me lots of time in setting up.
So, here in Bulgaria I have connected the S2x to my 28e dish, run a blind scan, and the receiver has picked up and saved all channels, including the ones my Dreambox could no longer receive.
I also have a dish here that's pointing at 39e, and I have run a scan on that one too, with the same results.
I've now deleted the Thai preloaded channels, and scanned in separately these two new satellites. After scanning in the second satellite, the first channel list remained.
In the S2x's menu you can search multiple satellites, so, once I've bought a diseqc switch, I will be able to hook up both satellites at the same time and then operate as normal, rather than keep switching out the cables in the rear.
PSI's advice on Line, where they stated it will not work abroad, has now been officially disproved.
This is a good little box that seems to be exactly what I needed.