You can, but you need to get a handle on your use, why take more when you know you're going to run out early? You shouldn't depend on this as a crutch.
Wait before you take the Sub for as long as possible, you may as well take this time to lower your tolerance as well, you have to be in precipitated w/d for it to work anyway. Then you need to take only 2mgs, then wait an hour or two, if you still feel bad take another 2mgs, 4mgs should be all you need, don't expect any euphoria or keep taking more looking for a buzz. Since you only take 4-6
Norco's per day you shouldn't need any more then 4mgs until the next day, then take the same amount. Now remember
Suboxone has a 37 hour half life, once you get your Norco Rx you'll have to wait at least that long after your last Sub to wear off before you can take it, otherwise it just isn't going to work.
SubO is a lot stronger then Norco, if you take too much and mess yourself up, don't blame me, I think you deserve some days of w/d's as a lesson not to take too many pills.