Well mine has been opened up for a long time, but if my memory isn't playing tricks the only memory channels that enabled you to transmit out of the regular amateur bands were the preset five USA channels and you couldn't move off them with the VFO and transmit, you got the "TX error" if you tried.
Well yes, Karl, but the issue is that no rigs are sold that will cover any countries 5 MHz allocations except for the USA's five channels. Opening up the rig to get your legal frequencies allows the possibility of operating where you should not, and the fragmented nature of the UK 5 megs band makes it difficult to remember everything (look it up, its a mess, I wonder if you have to know it for the full licence test!). I get over this by putting all the legal frequencies in one kHz steps in the memory, on a summit a chart might blow away - I had a whole reporters notepad blow away once!
As an aside, there is a thread on the Zed with complaints about an Italian contest station that was working a string of US stations on 7.125 yesterday. All the USA stations were illegal because their modulation was out of their phone band although their VFO frequency was legal - and some of the Zedders were criticising the Italian station for what they saw as illegal operation, not knowing that he was in the middle of the region 1 phone band! We all know our band allocations, but some got carried away in the heat of the moment - contest fever!