Extremely! You just have a knurled knob that you loosen and slide to desired position. NO grunting or straining required. they slide on nylon bushings so it's pretty smooth. Don't worry about wearing them out, not enough speed/heat to wear the bushings. I suppose if you put it on a machine and moved it constantly they may wear out eventually.

I haven't tried the sight tapes yet cause haven't stopped tinkering with my setup. So how accurate they will be for my bow i don't know. Blank tapes are supplies and that is what most people use anyway.

I have mine set for 25 yards and "locked down" knob tightend, for hunting. I'd just hold a bit high for a 30-40 yard shot...... or miss low...... If i miss (and I did) it would be a range estimation error (and it was) and not a "I used the wrong pin" excuse.....