I wouldn't want a hard sell from any breeder - are they struggling to sell the pups they are producing if they are having to badger potential owners?

Hmmm - doesn't sound right to me.
However, I don't mind a breeder giving me the CHOICE as to whether to choose my own pup, or they could choose for me - but I wouldn't really feel happy being dictated to. With Yogi's breeder I asked if they could choose the pup with the most "oomph" - as I knew they would be familiar with the pups different characters etc. The breeder chose very well, and I am more than pleased with their choice
Hope it all works out with the litter you are interested in.