WOW, i was hoping for maybe a reply after a few days but already taken a fair reading to catch up.
Yes at the Excel in London (it'll be my first visit there too) I'll be paying on the tube (didn't bother getting my free bus pass as I don't travel well on public transport. Only taking tube because over last few years find driving in London extremely frustrating).
The other week, using MyHeritage it linked to information on Familysearch (which was irrelevant so I disregarded) and I suppose that triggered the email from them offering 25% off. After dithering for a few days I decided to try and it was just a matter of Name, address, email. (oh and I think age group). I know I won't be able to travel all 3 days, I couldn't afford accommodation for the period so chose just the Thursday asi it's likely to be the quietest day and offered 3 talks I'm definitely interested in.
My main interest is how to locate and use pre-1800 records. I am a rather (pedantic/literal/evidence based person) and need proof of relationship. Very hesitant to add a great# grandfather as there were several possibilities with same name, withing a year of birth and same (or close) location, but finally fond evidence supporting the couple married in 1811. However, certificates back then provide little more than couples names, date of marriage and church. There are many Georges born in the area within marrying age (1794 - 1770) and I don't want the wrong one lol.
As suggested by previous posts, often people more interested in getting a big tree than accurate relationships will add anyone with the same (or even similar) name and these can be inadvertently added to your own. I'm hoping to find an easier way to undo this or even prevent it.
And finally, I'm hoping to get a better understanding of using the MyHeritage computer programme as well as the online MyHeritage, how to control the synch facility, and get full use out of both.
I think I've covered most of the above comments, but if on re-reading later I find anything I've missed I'll post on those later.
Thank you all so much for your responses.
Garth