Good luck! Let us know.
Just remember if the campaign is NOT successful, hardly any 1st trys at PPC are.
And it probably won't be because of parasites, so don't let that be an excuse or scapegoat.
Could be your ad, your keywords, the merchants landing page,
leaks on the merchant's site, all kinds of things.
It's a big puzzle, all pieces need to fit and a parasite is just one potential piece.
Here's a great article I was just reading about split testing one of the important pieces.
I never do it but I'm going to start after reading this. Makes so much sense.
Split Testing Ads - The How, The Why, and The When!