[ QUOTE ]
I'M sure this has been discussed before, but withthe climbing knot I'm using my rope gets super twisted to the point where I have to stop and untangle... Any suggestions?
[/ QUOTE ]
Use a bucket truck!
All joking aside... When you tie your hitch, don't add twist to the cordage as you do so. After your hitch is tied, gently weight the system and slightly compress the hitch by pulling STRAIGHT down. Do not add any twist or torque with your hand. Watch how the rope below the hitch behaves. Does the pattern stay in line? Or does it twist? If it twists, you either have pre-existing twist in the line, or you have added twist into the cordage as you tied the hitch.
That is a good starting point.
Once you are climbing... All climbers have a tendency to grab their hitches a certain way, and also twist their hitches a certain way. It's a natural habit and also depends upon which hand we grab the hitch with. As you descend, watch your rope. If it tends to twist clockwise as you look down at your tail, try twisting your hitch the opposite direction with your hand. The rope will now twist counter-clockwise. And vice versa. If the twist is being imparted by the climber, correcting it may be as simple as training yourself to pull straight down instead of the natural tendency to torque with your hand as you compress the hitch. If counteracting the rope twist takes a lot of effort and opposite torquing with your hand, then you either have a hitch that is not tied neutrally, or you have a bunch of pre-existing twist in the line.