To add additional info- yes, if a female is wearing scarlet, either as staff or MFH, then tan tops on the boots are required. (Stated a slightly different way, with the exception of Old Dominion Hounds which wears brick breeches, if your hunting attire includes white breeches, you must be wearing tan tops regardless of gender). Patent tops for ladies not wearing scarlet though not required, even if you have your colors, plain black dress boots are fine. As for field boots, they are ‘technically’ not correct except brown ones for cubhunting, but folks have been wearing them for formal hunting for years now, so it’s grudgingly accepted by old farts, though you still get brownie points for checking with the particular hunt. To say it another way, if you want to give hunting a try, don’t go out and buy new clothing if you can come reasonably close with what you already have, including field boots. Neat and tidy and able to control your horse are far more important!
Laying the drag is typically as the name implies, ‘dragging’ a cloth laced with scent, I don’t know offhand of anyone who uses spray bottles so can’t speak to that, unless they were spraying the rag as they went, maybe. There is quite an art to laying one, to make it as realistic as possible and make the hounds work a bit rather than just charging pell-mell with too generous an amount of scent. That would include lifting the drag and re-setting it a ways further, to make the hounds regain the scent. Of course the convenience of the drag is that the line of the fox can be predetermined by the huntsman to maximize viewer enjoyment and know where you’ll be ending up for checks, and for end of day.
I do have a friend who laid a drag for Myopia decades ago, using a retired hunter. She had not a spray bottle, but a bottle of the fox urine. After laying the first part of the drag, she was holding up for a specified time before resuming, and opened the bottle to freshen the rag. At that point, the retired hunter heard hounds in the distance and quickly got on his toes, ready to rock and roll! So yes, she did a good job of dousing herself with fox urine, but other than her own misery, she was far enough ahead of the pack that by the time they got to the drag line, she would be long gone.