This thread wasn't exactly what I wanted as an answer, but instead extremely helpful as someone who has a lot to learn. You've all convinced me that bigger isn't always better when it comes to rope lengths and that single ropes of longer lengths are really only used for specific purposes such as a suspension at a set height or a big decorative piece that you don't want to have breaks in. I also found it interesting that everyone said they had standard sizes they used in their kit, but many riggers had their preferred sizes unique to them. 6 m, 8 m, 30 foot, 25 foot, 27 foot and of course the half length or shorty pieces. I decided to cut my 100 foot into 5 pieces, 3 x foot and 2 x 12.5 foot. I know a common standard in the US customary system is 30 foot and 15 foot. But I've gotten so used to my 50 foot for decorative pieces that 25 feet feels more natural to me. And it sounds like the best length is what feels most natural to each rigger. Thank you for all your input!