SextanteUK
The onely shure way to know the nr of aircraft at a base is as follows.
Go to the web page and pick a day to travel out and a return day , Monday and Friday works. then see how many aircraft leaves early and arrives late.
This is done in less then an hr.
Remember, some bases dobbel in the 8 month summer season.
This , I find, is the only shure way to know.
They may pop in an extra aircraft in July August, but it is compensated by Floaters.
Good luck