k, update- I had a few hours off, so I tried some of the weber tinder blocks- set one directly on snow with a 5-10 mile an hour breeze- temp 20 Deg F.
Lit and stayed lit with a yellow flame- It started to melt down into snow after about 5 minutes. Stayed lit for 13-14 minutes.

Only thing I did not like was packaging. It looks kinda like a blister pack of pills, but the foil does not seal each blister well. I do not know if air exposure it bad for the blocks.
I think I might hand wrap a few and try them again in a few weeks.