Major differences between redosing and taking the same dose in one go?

I've only done 2cb about 4 times, max dose was around 30mg. That 30mg dose was taken in two pills (advertised at 22mg each but I'm assuming they were no more than 15mg), the second one I took at t+1:30 after the first. Was my best 2cb experience to date, my visuals were off the charts. One of the best psych experiences I've had tbh.

My question is, what are the major differences I can expect if I take that same dose all at once? I want it to keep me going for at least 4 hours (rave). Will the visuals be much more intense, or only a little? What will the energy be like?

Sorry for the overload of questions but I'm mainly just looking for some general experiences. Thanks in advance!