Theres no joy in counting in a small casino's such as these, you should go to the larger cities such like Manchester, Birmingham and especially London where they have at least 8 tables.
If it only has one table I can imagine it gets very busy, so that cancels out wonging right? What are your bet spreads, because I can imagine only having one table that big spreads generate a lot of heat quick. Have you tried googling for close by casinos, I'm sure there will be one if you scout around. Conti has a good point about visiting big cities but if you are trying to locate local ones google is the way forward
Count in any casinos aslong as the tables arn't constantly full.
Try go at just opening time or in the middle of the morning. Small casinos are sometimes better as well they usually don't have the CSMs and the dealers tend not to be as good and deal a bit more slower etc.
If you're counting on your own you should use smaller casino's with half empty tables however if you are counting in a team a bigger casino with more BJ tables is preferable as you don't want to seem suspicious with say a counter at evry table.