I can't comment on the lift but BFG's have the snowflake and look fantastic in 35's or 37's.
If you decide to go with the 4" lift kit, you'll wish you would of gone with the 6".
As far as the tires go.. don't get 35's with a 6" lift.
Here is my sport with a 6" bds w/ 37x13.5/20.
My job also requires the 'snowflake' but nobody has mentioned nothing yet. Next year I'll try to find some actual winter tires. Winter is over, and we had a mild winter here in BC.
Where abouts in BC are you from?
I have the 3.91 gear ratio. Did notice some power loss but i have a superchip coming to adjust the computer to 37" tires and will adjust my shift points as well.Nice Truck shizbox!!. Did you lose a lot of power with your 37's? also whats your gearing ratio and did you lose your shift points? Thanks man.