If properly applied (https://www.theduchy.com/applying-handcuff-knots/), this is very effective — but in my experience Prusik Cuffs are more secure. (I have only ever had one person escape from Prusik cuffs, and that is because I didn’t properly apply them — they were NOT able to escape a second time 🙂 The reason is that there is much more friction in the Prusik Head. Also, when you lock it with an overhand knot before tying it around your partner, it ensures that any struggling by your partner will only serve to lock the knot tighter! The Quick Cuffs are faster though if you are tying from scratch — but I never do that. I have a set of Prusik cuff always tied and sitting in my toy bag.
So is this knot more or less effective than the prussic
If properly applied (https://www.theduchy.com/applying-handcuff-knots/), this is very effective — but in my experience Prusik Cuffs are more secure. (I have only ever had one person escape from Prusik cuffs, and that is because I didn’t properly apply them — they were NOT able to escape a second time 🙂 The reason is that there is much more friction in the Prusik Head. Also, when you lock it with an overhand knot before tying it around your partner, it ensures that any struggling by your partner will only serve to lock the knot tighter! The Quick Cuffs are faster though if you are tying from scratch — but I never do that. I have a set of Prusik cuff always tied and sitting in my toy bag.