Lang Lay are a better rope for a basement traction as they are more flexible and handle the double or backward bend better. But either rope will work on a basement traction,. HW provides regular lay on their machines.
The U-Grove undercut can be for either rope, but is needed for the lang lay.
TK Spares may be able to dig up the original build sheets to see what was supplied.
Any signed or either being reroped but not the other?
