This or another coil shock on a 2015 Kona Process 134 – YAY or NAY?

Yes, I'm aware this frame has a linear suspension curve – so it may not play so well with the coil. But, maybe somebody has coiled their older Process? I'm about 170 pounds with gear and a bit of a shambler down the blacks & double blacks. Not very fast and just having fun. I am a Dad and 43, so I'm not out to cripple myself. I think the coil will be fine!

Anyone with experience putting a coil like this on their older Process?