Well Airboss, if you say "in this part of the world" and your location is Germany,then I suppose you've never come around here(assuming that you're flying the A320).
Back to the topic now.I think that if you are flying your own A/C,then you can fly @ 370K on the LOC at 3000',but if the company wants you to stick to their rules to fly THEIR A/C then you'd better stick to them..
My 2 cents.
MS.