Nowt wrong with hancocks stuff ive seen a fair bit of it work up here and almost got one myself before i got my maggie.
tidy set up you have there mate i hope that big pie muncher bites hard, it will keep the dog thieves at bay, i made an indoor kennel/dog room just to keep the twats away its part of a big garage/workshop on the house it has heating and sink and hot and cold water, its even got a food prep bench and alarm system, its a doggy ritz.
on the subject of colour affecting performance......its a no brainer
enjoy your little dog put the work in and fetch the best out