Flyingkiwi, there are arguments for and against using reduced flap, it can tend towards a holy war.. however: Given a crosswind component you quote at 6kts, you really shouldn't need to be considering less flap. I would suggest it's just a handling hiccup that will most easily be fixed with a little assistance from someone on board who can watch what you're doing.
For my part, I wouldn't recommend sorting out the cross control during the flare - I either get into the slip before the flare, or flare and use slip as required during the hold off. That might be a matter of terminology.