I agree with NickW.
Same day. I used to bench first and then follow that with close grips. But that was in that pyramiding fashion. Complete the reps and add 10lbs to the start of the pyramid the next week. That way you will know when you are gaining strength without having to really think about it. complete the pyramid, you are obviously gaining.
But other exercises are also key. I think dips were one of the movements that helped me the most. 3-4 sets to failure. this is of course after benching and close grips so the last set may be pretty short on the reps. I would also take a more limited rest between sets for these, 30 seconds?
Then heavy pressdowns, ropes or whatever else you wanted to throw in. We have a kneeling rope machine at my gym that is the best thing to blast the tri's. We hit it 8 sets of 8 reps. again, if you make the entire movement you start the next week a plate heavier. It hits the tri's from every angle but really blows up right under your armpit in the fat part of the tri. It's a great pump at the end.
and NickW, 360? Yikes! What are you throwing around, just for curiousity?