Mark, I've had endless bad experiences with Geoff at Hi Spec, going back almost 15 years to te days he operated out of a double garage at the bottom of his garden.
He does have in principal some nice products, as he does have some great knowledge, but there are far to many niggles, miss fitting parts and poor back up customer service from him that always undoes his good efforts.
Now I only ever use him for fabricating custom bells and brackets to my own spec's and needs, and even then I do so thru a mates company so we have more clought and leaverge against him.
The beauty for you and me is he is local enough to go down there to collect parts in person, but his excuses of why things are constantly late is as bad as the bulls**t that Artur Scargill used to spout!
Telling me on a Monday that my new bells have been dropped for anodizing and will be ready for collection on Wednesday, so you go back in there on a Wednesday and he tells you he has been a bit busy and hasn't had chance to start making your bells yet is a bit of a stupid slip up with words from his point of view, and a clear cut line of bulls**t!!
If you do want to go for them, I can possibly help out with a little bit of business discount unless you already have an option for that.
If you are also dead set on going for the 4 pots, then give my mate Matt a shout up at Jamsport and see if he can help you out, gladly even say I've put you his direction.
Shame your not around this weekend or you could have tried mine, or failing that if you are around on Thursday then nip down to brands and try them then aswell