If it were me I would print the tape and have my indicator touching the actual yardage line.
A 15 yard pin gap? Really? Have you thought this one over thoroughly? Remember in the 3D game the 10 ring is 5" and the 12 ring is 1.5" on average.
A pin gap of 15 yards is huge liability in the game of 3D and I think it would invite some real problems. As an example targets in the 35-40 yard range give me the hardest time judging accurately. A lot of folks shooting Hunter Class set their pins up at 23, 28, 33, 38 and with a max no greater than 40 yds they shoot it really good!
You need to be a human rangefinder if you are going to use a a 15 yd pin gap on a 3D Course. Also I would highly suggest you pack an advanced first aid kit with you to tend to the wounds you are going to receive from the azz whoopin' put on you! Even shooting
known yardage with 15 yard pin gap, you better hope you're first aid kit has life support cause you're gonna need it! [/quote
That's funny right there.