lol - i know very well how that can feel.
got a couple of other points, but i'll mail them to ya rather than spoil a very loved up thread. lol.

:D

Next mission is Jon's wacky timed bf jauny at 2:44.

Speaking of which... Somone needs to come up with better names for this crap besides 4x1 time bent anti-brid or whatevathafuk

Am I right in saying that it's just alternating between same-time vertically oriented elliptical butterflies and split time vertically oriented elliptical butterflies, switching on the outside (ie without coming to center) and without any extra beats?

I'm replying to myself because this last thing I wrote is wrong. I gave a half-hearted post that wasn't fully accurate.
Tank said that the move is a 1x4. That is true, but it needs specification. There's some lax terminology out there for polyrhythms we need to remedy.

BRIEF TERMINOLOGY RANT
The most common anti-spin flower has 4 petals. The poi only makes 3 complete circles though. If you count the times the poi passes the bottom of its orbit, you count three. I'm arguing here that counting ORBITS is better than counting PETALS because of what happens with small numbers. This shape is 3x1 because the poi makes 3 rotations while the hand makes 1.
A 3 petal anti-spin makes 2 orbits. It's 2x1 since the poi makes 2 orbits while the hand makes one.
A Cat-eye (hand-makes-a-circle variety) would be a 2 'petal', the top and bottom of the ellipse would be the petals (ugh). It's 1x1 since the hand and poi make a single orbit in the same amount of time. When you do this cateye, you will not feel any 2 in it at all. It's all 1s, equal timing, equal orbits.

BACK TO THE DIAMOND SHAPE
The whole move is 4x1, four poi orbits to 1 hand-diamond-pattern.
Some simple reference points for this discussion: top, bottom, left, right will refer to the verticies of the diamond, they are all connected by lines.
Watching one poi, it passes the top when its hand is at the top position. The hand moves to the bottom, the to the left. Just as the poi reaches the top of its orbit again, the hand starts to move across to the right. Then it goes from the right to the top, where it hits the top of its orbit again. So top, bottom, left, right made 2 full poi orbits. The second half of the move (top, bottom, right, left) makes 2 more. Once the hand has traced this full pattern, the poi has made 4 orbits. 4x1

TRIANGLES AND PENTAGRAMS
What I said about 3x1 and 5x1 was false. Wrong naming system. A triangle can be easily made by dividing a hand-circle into 3 equal arcs (120 degrees each), then flattening them into lines. For example, take a 2x1 (3 petal) butterfly hybrid ("mercedes"), an instead of making a big circle with your hands, move linearly between three points. One poi is 2x1 with the hands in the opposite direction, and the other poi is 1x1 with the hands in the same direction.
Pentagram gets heady. The shape your hands trace is a 5 pointed star, connecting the interior diagonals of a pentagon. I'm going to describe the one in which your hands always stay together and your poi go opposite directions (the same bouncing butterfly as in all previous shape examples). One way to look at it (the same system I've been using) would be that hitting all five points is one hand orbit. While that's happening the anti-spinning poi makes 3 orbits (but traces 5 ellipses), so 3x1. The other poi, that moves in the same direction as the hands, makes 2 orbits, so 2x1.
Another way of looking at it (more complicated, yet mathematically accurate), is as 2 circles that were flattened in different places. Now the arcs are 144 degrees, and it takes 5 of them to make 2 full circles (720 total degrees). If this is confusing, picture a 5 pointed star inside a circle. Now push one of the straight lines out from the center, stretching the line into a curve, and making it curve all the way out to be a part of the circle again. The ending curve that rests on the circle is the "arc of 144 degrees", and the line we started with is the "flattened arc". So counting the hand path as 2 circles gives us polyrhythm of 3x2 for the anti-spun poi, and 2x2 for the regular-spun poi.
I said it was heady. But I didn't want to leave a hideous error posted (5x1 was not even close).

LINES
I like lines. They make my spinning look goofy, but I don't care. My exploration of the possible combinations of linear extensions and isolations into elliptical flowers has been a personal pursuit: something I do because I like it, not because I want other people to like me for it.
I fully realize that someone who spun just a little poi would walk up to me in a park, see the floppy shapes, and kindly offer "here, it's done like this..." and show me the weave. So it goes.

Cheers mate!