No rule on how long your line is. By distance or time.

Of course the ground will limit the length of your downline. Just remember every manuever is a geometric display. Radius or turns or circles need to be the same. Roll rates need to be the same, downline/uplines need to be the same........this is all for each manuever. You can vary them in each different manuever but for one specific you need to keep things constant.

Oh---and have fun.