Hi WindyBear,
a 5,2 will touch the water at your height either while you are pumping onto the foil or when you're in the act of messing things up anyway (don't think I'm being arrogant, it happens to me at 185cm also), but you should easily be able to comfortably sail it with your height, as it is not a high aspect wing. But an Ensis Score 5,2 is a powerful wing which you would only use in very light winds with your frame unless you are not only height challenged but weight challenged, too.

Light wind pumping is where the wing tends to catch most.
It's probably best to work on technique.
Gong publish wingspans as well.