wanted chocolate labrador stud for my 2 yr old bitch november is the time in london/kent/hertford.i live in woolwich london se18. email me morton_40@hotmail.co.uk

You forgot to tell us her health test results,show or working results,her conformation faults and her breed lines in order that a stud owner will know if she is a suitable match for their boy.
Archer

Have you had her eyes and her hips tested?  Also make sure tht the sires is too.  It is not a matter of putting two dogs together and hoping for the best, you have to ensure that both dogs are healthy enough, have the correct temperament and also are as close as possible to the breed standard (it doesn't matter if they are not shown) as possible.

Isn't it also the case that chocolate shouldn't be bred to chocolate to ensure the colour isn't diluted?  Or am I just imagining that?

Breeding chocolate to chocolate seems to be more of a rule than an exception when you look at all the litter adverts! Most likely those breeders "play it safe" to get the selling coat colour - and unfortunately the yellow dudley noses, too...