Thanks for all your interesting replies.
I'm running 40% expo!! The guy that i got the pattern plane from said he used 40% so I've been using that.
Ok it feels like a wet fish but just means i have to move the stick more in either direction instead flying 1-2mm off neutral all the time, unless thats the preffered way of pattern flying but why make it twitchy for yourself.

However Im going to reduce it down alot further now but was interested in any coralation of expo and pattern moves. I mean dual rate switches are a distraction. Why not just set your mechanical throw to what you want and expo a bit in the middle. Happy days.