Yeah it's profitable but sometimes like 1 random day in a month I'll get a crapload of impressions and clicks but no conversions. All other days it converts fine. Don't know if perhaps there is a TV ad running for the product or something like that - dunno.
Thanks. Let's see what I can do with this!
The average daily spend over a 30 day period shouldn't go over your daily max budget (in Adwords anyway). So one day it might blow 20% over, then another 20% over, but after a few more days it should all even out, by staying 15% under, then 25% under etc etc.
Cheers.