Tiling is a bad word for some people, but there are those that are beginning to seriously consider this option, even given the cost. To successfully tile, there needs to be sufficient slope to carry the water through the tile, there needs to be an outlet for the water into a ditch, stream or river, and there must not be any legal restrictions to draining certain land areas. If there is any interest in tiling, there are commercial people that do this kind of work. Be sure that all factors are in place before proceeding. This is an expensive process that often costs several hundred dollars per acre.
Any mistakes are difficult to fix.
This depends on the amount of solar radiation received and the wind speed, temperature and relative humidity of the air. The higher amounts of sun, wind and temperature, the faster the field will dry. The lower the relative humidity, the faster the field will dry. Very little drying will occur on cloudy, calm, cool, humid days, while hot, dry, windy, sunny days will dry fields out quickly. These data are far superior to pan evaporation data that have been collected in the past.