Thanks for the replies guys. As I mentioned, it makes for good reading of their FAQ in the typical British style of humor but has no value in terms of what I wanted to know. At the time it was specific to a saddle/bag combo that would of both been from them. I've since changed my mind on the bag choice however, but will stick with the saddle of course.
Thanks again to those who gave honest opinions. Should of come here to begin with. It's not a lack of understanding of British culture (Naturalized Citizen) and/or I hope not a lack of sense of humor on my part. But at least for me, the fact remains that when you live in a part of the world where you ship in all your bicycle goodies, its expensive to make mistakes on choices. Well, it helps if you get answers on the things your looking to purchase.
Anyways, done with this now and going to assume that a comfortable amount of weight on the two may be about 7/8 kg according to some of the responses. I've always been a rack/pannier guy but have wanted to try out a largish saddle bag.
Cheers
Ray