sorry i should have worded this better
in the Art and Science of Practical Rigging they go over what i am trying to explain. Say you were attaching the Portawrap to a tree with an eye sing, you went around the tree counterclockwise with the sling ran it around the splice eye (that is girth hitched to the porta) and came back clockwise with your timber hitch wraps. IT is said you cannot load the portawrap from the left, (the direction the timber hitch wraps are going in this case) because it will turn the whole system rather then making it bite.
i'm having a hard time explaining it clearly i hope that helped.
Better, you want to load into the bight so that it chokes down. Loading out of the bight, towards the backup hitch, will defeat the function of the knot/hitch.
Though for light loads it does not matter, this is for heavy loads wich may cause the sling to walk. With a timber hitch only it may cause the hitch to fail.
Am I doing better then before?
-My question was, does the GRCS have a similar limiting side it can be loaded from?
thanks for the replies
Optimal loading of the GRCS is straigth through the top fairleads. Once the rope angle touches a fairlead you risk bending them.
While it is desigend to sideload from either the left or the right, this should be reserved for light operations only. Since there is no choker on the side loads from either direction, even if striaght and not touching the fairlead, can cause system failure.
I will use this for light loads with little force, but once you get into heavy picks, or dynamic loads the redirects are a must.
I've had the rig slide around the tree while blocking out big pieces of willow.