Another interesting piece to the polling rate puzzle.
While looking into why the Tempest spinner control broke in 113u2, I found out the game polls the controls 246 times a second. Being a vector game, there is no vblank to poll at so it sets its own poll timer.
So that means you really do need to use a USB interface with the XP poll rate switching program I mentioned earlier to set the rate to 250 - 500. 500 would be best. But 250 is still OK. Only 4 of the 246 game polls would contain 2 windows polls, the rest would be 1:1.
Using a PS2 at 200Hz polling, then 46 of the games 246 polls would be 0 or unchanged from the last poll.
Some people may not notice the difference, just like some people can't hear the distortion when their stereo is turned up too loud. But for the ultimate in smooth emulated behaviour, you need 250+ poll rate, so the data is available when the game requests it.
And yes, Tempest should be fixed for 113u3.
Silver...
You might want to mention some of this on the Wiki page too. And change "gbe" in the 3rd paragraph to "be".

Thanks.
D.