[Prophesy]

so, I've started playing here recently, 4 or 5 days or so, and i've got a question:
gym trains..., I only train on full energy, and full happiness, but I've got a question about personal trainers.
it seems, whether i train solo, hire novice, or an experienced trainer.., the gains seem to be close to identical.., it seems like every time i hire a trainer its like throwing 200 bucks down the tube.
anyone noticed anything like this?
is it always that way?
perhaps a recent bug or something?
i dunno...,
let me know