Thanks for all the help lads! I ended up going with the oxford panniers and took a road trip from Wexford Ireland to The Giants Causeway at the other end of Ireland in a day to see how many miles we could cover in one day so we could better plan a trip around europe based on it. Here are some pics of the bike fully loaded. I am currently making a video of the trip and once it is complete I will post it up here for you all to look at.
Will on his Yamaha XT600E and my XT660R beside him after breaking down camp the following morning. I took some of Wills gear for the return trip because he siad his seat was like sitting on plywood for the whol trip so at least on the way back he could slide around on the seat a bit more to ease the pain.
This is me as we were just about to set off.
Both bikes fully loaded and not an ounce of trouble with them.
Long live the bunjee cords!