We normally use 7 strand mil-spec 550 aka suspension line aka para cord. There have been times when we were short and have used 5 strand as well. Also, the 5 strand has been used where a smaller handle was desired.
Curently, we still use 7 strand mil-spec and 7 strand civilian. None of that wierd rats nest looking crap!
All the best,
Duane Dwyer