Swingarm length & Suspension setup for Ice

[Rex789]

I’m looking at building a 4 mil strictly for ice riding and after searching for days, I still haven’t found an accurate answer / suggestion for swingarm length and a good suspension setup. 
 

Being that all posts I found were from 15+ years back, I’m hoping that new light can be shed on this topic.

 

For those of you riding & racing your Banshee on ice, what is the swingarm and shock / suspension set up that you’ve found to work best?

 

Also, I absolutely love my ported 421 Cub for the dunes and I’m thinking of going for the same set up on ice. Any input on this? 
 

TIA! 

[T13]

I run a -2 inch on my banshee with a stock shock and an adjustable lowering link. It works awesome in the corners but can get a little sketchy on the starts if you don't slip the clutch enough. 

[locogato11283]

Have you won anything?

[T13]

3 days on BHQ