I'm still using the old magblock / striker combo set-up but improved the tinder I keep in my waterproof poch.
I cut 8 4"x4" squares of heavy upholstry grade burlap.
When you lightly scrape your knife along the strands of jute, the "fuzz" comes off in a small pile and the full strings just sit on top of the fuzz. I don't even need to use the magnesium shavings. One small spark and it goes up like it was made from gasoline.
The best tinder I've ever used. It works great in piston igniters too.