Looking at that design of the handle, I would pull the knot up and fit the rope in
the groove and push the knot into the hollow on that side of the groove.
Shortening the cocking rope can sometimes help for making it easier to cock the
crossbow. One is not pulling up so high when nearing the fully cocked position.
I have cocking ropes that came with all my crossbows, but any crossbow that did
not except a plug in crank, I modified them so they would. I have a few reasons for
using the crank cocking device:
1)it is more accurate. Using the rope cocker is faster but near the fully cocked position,
one may pull harder on one side, off setting the center of the bowstring in the arrow latch
area which can cause the arrow to miss the point of aim.
2)my crossbows are all mounted in a high quality rifle jig when tuning for target shooting
so I do not have to remove the crossbow, cock it, then reinstall and align it again before
shooting.
3)crossbows with the large cams and the axle having a big offset, are much harder to
cock when nearing the fully cocked position. This is similar to a vertical bow with a high
let off. Once one gets over the hump of those cams, the vertical bow is easier to cock
and reduces holding weight. The vertical bow or crossbow with the large cams and offset
axle is where a lot of speed is generated.
4)if one has had shoulder or back injuries or even as they get older, their body is not as
strong as in the younger days, a crank cocking device is very helpful.
Wishing you all the best.
Take care.