For most of my koi fishing I have found that a hiviz pop-up is really effective. This Rod Hutchinson Force pop-up in 12mm fits the bill nicely. Tying a rig for a PVA bag by Evan Cartabiano 0 February 8, 2018 For most of my koi fishing I have found that a hiviz pop-up is really effective. This Rod Hutchinson Force pop-up in 12mm fits the bill nicely. Some children love pictures…And some children don’t like them at all. He was very happy right before and after and I just have to live with the pics…