More like 5 minutes and the 25 yields as much as the 90 for me. It's way foolish to skip that step. :FAQ:
, man. That wasn't a good choice of words. Maybe you've got cheap bags or something, but mine don't take that long and I get half my yield from the 25. I just made a nice huge chunk of hash and it would be half the size it is if I just used the one bag. It's like throwing away hash. I don't really know how to spin that to make it sound good.
4 hours is the time it takes me to do the whole process from getting the buckets out to putting them away at the end.
I use a rubber spatula to stir the water in the bag and move the hash off the bottom of the bags. I run it through twice. With the 2 bags that collect the hash, I just got 27.5 grams and almost half of that came from the smaller bag. A waste of time? I think not.