i have IVed K once and it was after IVing DPT, but i remember the K specifically. i had used only about 20-30mg (eye-balled out) and decided to end up splitting the shot into another rig so i could inject one shot, then the other if it wasn't enough. maybe you could try that? all i know is i am glad i split those into different rigs, because after that first one i was done (but i did end up slamming the other as well)...