I tried the homebrew siping method of a carpet knife. In my opinion it turned out well and the price can't be beat. I recently read the rundown on a siping/grooving tool in 4wd toyota owner and it looked like the bee knee's to me but expensive. So some day maybe I'll own one of those and can groove up the swampers on the other cruiser, should it ever make it back to the road.
So I did these tires yesterday and it was super cold so I only did it for 15 to 20 minutes at a time. My cuts aren't perfectly spaced or completely straight. Oh well. It was damn cold.
P.s.
It would be really hard to cut your dong off with this method![]()
C'mon Jake......
you have a BIG ol shop with two wood stoves in it..... whats cold? bring that hunk of hud in the shop and do it.
and you want me to rent shop space????????

I still think he should have used a ditch witch to sipe.