depth of groove when cutting

[Harristablist]

Im interested in having my own records made, it will be a scratching record made up of mostly locked grooves and samples.
When i get my masters cut is it poossible to request a cut depth? or is that relevant to the engineer and musical content?
because of finished uses, im guessing that a deeper groove could only help with keeping it more stable in the groove for the pressed copies.
does depth have any impact on content limitations such as volume or play time lentht?

[JuanPabloCuervo]

a well centered disc its very important.

a new stylus...

http://www.vinylrecorder.com/deep1.html
http://www.vinylrecorder.com/trebles.html
http://www.vinylrecorder.com/time.html
http://www.vinylrecorder.com/bass.html
http://www.vinylrecorder.com/diamant.html