Dave R -- Funny that you use that "rule of thumb" (i.e. follow another boat) !!
On the contrary, I try and teach evryone that I come in contact with to "Think for themselves" and when in doubt, slow down and check the map (again). I have personally witnessed hundreds of times boaters eithor in front of me or behind choose the wrong side of a marker. The most prevelent spot (but not the only) is the "stick field" between Eagle Isl & FL#44. Some are Rentals but all too often they're not. I've even seen a couple of GFBL choose incorrectly in that area.
Point bieng -- Don't Follow -- I tell everyone --the person in front may (or may not) have what I term "Local knowledge" (a very detailed understanding of the hazard they are maneuvering). You -- in the trailing boat -- will never be able to precisely follow as their wake drifts in one direction or the other.
There are many folks who understand exactly what and where a particular hazard may be --i.e. Local Knowledge and would seem to defy the correct side of a marker. For example, we boat regularly on the Eastern side of FL#1 (that's where our cottage is located- I'm comfortable in those waters). Others simply have God on their side !!
Point ------>>
Don't Follow, unless you know who your following 