I've always dabbled in rope play usually limited to wrist and basic restraints, however I am branching out into shibari and other more complex forms of Rigging and wanted advice on different lengths of rope to get?

I generally have a taste for bigger/curvy women and I have found in a few cases the rope I have falling short in terms of length, currently I have a couple of 30ft ropes and one 50ft rope (all 10mm).

I am hoping other riggers or rope bunnies out there can help advise me on what you all have in your kit bags in this sense? Bonus points to those of you who have bigger subs/are bigger subs for letting me know what you use, also further bonus points if you let me know what kind of rope you like to use and why?