Anyone using a modified(reduced friction) sim1,dll.I found several versions.Can someone explain the pros/cons and/or strange behaviour in using it.

I've been using it for almost a year. My personal taste is... Pros: better throttle on the ground, no more slippery (well,less than default) Cons: some a/cs already change the idle power to taxi better, so when using this mod sim1.dll the a/c can be too powerful on the ground (such as ifly 737 or wilco/cls airbuses, even on idle I have to use the brake to slow it down), and the plane shakes below 2 kts (user a/c and also AI a/cs)

Thanks.I have noticed increased power on the ground and greater body roll at taxi speeds.Does this modified dll affect in flight dynamics?

no, only on the ground.

Thanks Johan.I'm actually using your modded file.Cheers!!