I guess there is hovering and then there is hovering. Several at my field can hover one mistake high for 30 seconds or so while the airplane drifts away with the wind. There is only one guy I've seen fly who can hover 3 feet off the deck and keep the airplane stationary for as long as the fuel lasts. I learned to hover my Burrito high and drifting in about 6 months of once or twice a week practice. I am still working on keeping it stationary and low. I've been working on that for several years.