instead of the darkness i see in the diph-hole, it was filled with bright colors, swirls and stuff, like the lights were turned on, i bombed the dose slightly before peaking, felt like the euphoria from the bk-2cb was increased, though it was only my 2nd time to ever take the bk2cb. it kinda reminded me of what people say a k-hole is like but with more bk2cb style cev's
after i abstain from both for a couple weeks im going give it another shot and write up a TR. it was a mindfuck for sure, but enjoyable and gave me more control of the cev's while holed and made the rest of the bk2cb trip smoother, the way i had to explain it when i cut most of the post down bc it was just crazy compared to bk2cb alone. at the moment, either the batch i have of diph is weak, or tolerance high, but i couldnt hole off 150 mg iv'ed yesterday, no headache either like i had from the 100 mg iv hole. nor did 250 mg bombed give me the effects i expect.
edit:
also while on diph i felt i had more control over the visuals, esp the cevs while i was still feeling the diph and laid out on my bed