
for miss pink - you're one of us nooooooooow...
megafish - the logical extension from the tricks you listed is not 6223223.
i reckon if you follow the pattern, you get this:
3
423
52233
6222333
722223333
...
they all work

for the reason that 6223223 doesn't work, look at the 223223 part - think where the balls would end up...
no siteswap is invalid - there are just some that aren't quite finished.
you can make that one work by changing a number and adding a multiplex.
there's a crap prize for the first person to give me a variation on that trick that is a valid 3b siteswap

mech - the reason the russian balls have an arc that is not a parabola is because they are not 'solid'.
they are stage balls that are partially sand filled.
the loose sand inside affects the arc of the ball on the return but dx's shouldn't react like this as their filling is packed and as such has no room to move around inside the ball.
rob - you're getting new tricks at a crazy rate - despite the freezing cold, rain and impending winter.

i reckon you're learning new stuff fast enough for requests now...

so, please can you learn (4x,4x) on doubles with alternating left and right hand backcrosses for one of the throws?
its lovely - northern can kinda do it with balls but i'd like to see it done with clubs by someone i know

and just to keep this partially on-topic (although look at the first page if you wanna see how on-topic it ever was here), i'm working on:
5b inverse cascade [nowhere near]
64 [closeish]
4b fountain with every throw as a reverse shoulder throw [nowhere near]
4b mills [nowhere near]
reverse luke's shuffle [one side sorted, other side hopeless]
3up half pirouette to contortion [did it once, now for some reason i think its a good idea to try and get it solid

]
cole. x