Bike fit / correct riding position

"she will just move the pedals out by changing the spinle length until my hip, knee and foot are all in line as this is the only thing that would actually make a noticeable difference" is the bit that sounds completely wrong to me. I've seen some pretty large amounts of fail with people setting up their own cleats large distances off where they should be so how she can say it's just spindle length without taking into account anything else is totally rubbish.

Thats what I thought, knowing that I've had my cleats very wrong in the past. Just wanted to check that speedplay pedals didn't have any magical powers or something that I didn't know about.