Ultimate Survival Technologies Blastmatch vs Sparkie flint for Ultralight Backpacking. I own the Blastmatch from Ultimate Survival Technologies and have been eyeballing the new Sparkie since it hit REI. I actually even contacted US before the Sparkie hit the market back in Nov ‘08. The Blastmatch isn’t exactly light. It often doesn’t make the cut into my backpack. I would be hard pressed to say it even qualifies for Ultralight Backpacking. The weight savings are definitely evident in the …