Different people like different things. During Invasion currents were fairly normal (7/1 - 7/07). The following week, things got weird, lots of north to south, fast currents. Shore diving was a blow-out. Currents in Cozumel can vary hour to hour. My log book from 07/11 lists "heavy current" for a La Francesca dive. It's unfortunate you experienced a dive not so much to your tastes. My wife and I both enjoy drift dives. Faster currents mean more territory, but make U/W photography more difficult. As long as the current is horizontal, it's good for me. Those pesky down-currents, down-wellings, whatever you want to call them, do give me some pause. On 07/10 at 91' my group was caught in a pretty good down current at Colombia Deep. The DM rated it a 6 out of 10 as far as severity. We hit the bottom and crab-walked to 74' where it tapered off. Interesting experience.