Yeah. It's so crazy with all those gurus and people with magic formulas. I run ads/deal with analytics/online marketing since 6 years and somehow first thing I have to do in 90% of cases I'm taking over someone else (even agencies - not only freelancers) client is fixing f. tracking as they have all kinds of double, triple, no conversion tracking. I mean big part of specialists on the market cannot do even that right. :)