Dubstepforum.com

I have a tune I am about to send out for mastering, so I would like to ask for advice here based on a previous tune I have linked below where I fear I may be making the same mistake.

Basically I think I keep the subs a bit too loud, and I am thinking in this case the sub sounded too boomy when I got the master back. It sounds fine when I crank it here at home with the premaster but I think the end result came out a bit overkill and I would place the blame on myself for my mixdown before I would blame the mastering engineer. Curious if you guys have any general rules of thumb as to where your sub hits db-wise in relation to the other sounds in your mixdown. Especially with consideration toward what the mastering engineer will be doing later.

Here is what the tune sounded like when it came back from mastering.
Soundcloud

dude intro is really nice.
sub stabs on the intro are a TINY bit loud for a pre master imho, the engineer can always boost those for you..

this is real deep dude, i really like it. the rides and mid section are awesome..
the vox are a tiny bit muddy imho.. COULD be a little louder/sharper..?
the percussion is awesome though dude, are you signed? if not you should be.

the buildup to the final drop is exquisite too. your sounds are really nice and well balanced..
i think in the last big section the sub is a little loud again, literally just by a smidgin.. thats just my opinion though man it still sounds dope regardless.

hooked you a follow on sc.
would you mind returning the favour? i got this back from my engineer yesterday.. i really like it but id like a more critical external opinion..

Soundcloud