That's really not a bad deal at all. What form are they in? Norco 10mg Hydrocodone / 325mg APAP, Lortab 10mg Hydrocodone / 750mg(?) APAP, or are they the lower dosage, 7.5 mg hydrocodone or 5mg hydrocodone.
I've done damn near every opiate/oid in every ROA minus butt-plugging it (which I've nothing against), but I've never done tramadol before, so I'm not sure how that would affect your tolerance to the hydrocodone.
I would recommend starting with 15mg hydrocodone for your first dose. (I would normally say start with 10mg and add as needed, but with your possible tramadol tolerance 15mg sounds about right.). Chew and Swallow those 15mg worth of pills (unless it's a syrup) and have a drink. Do this maybe an hour after some protein and it'll hit you the hardest. If after aprox 30-50 minutes you're not buzzing hard enough (which I sort of doubt) Take another 5-7.5mg, and I bet you'll be feeling perfect.
Just watch out with these insidious Opiates. They really get their teeth into some of us.
Also, I recommend some cannabis (if you enjoy the stuff) with that hydrocodone. Opiates + Herbs is one of the most relaxing combos around. And fairly safe too, unlike benzos + opiates--which though fantastic tends to lead to OD and/or Death, so it's not something to be taken lightly.