Acid tends to give people rubbergut feeling, but its always good to eat some snacks or something so your not empty stomached by the end of it.
Also, i did the paper towel method. its a lil hit or miss.. so i tried what i did when we cracked are first seed a year or so ago.
paper towel, in a tealight candle shell (the little alluminum cup things?) wet n wrap in saran wrap, throw on HDD in cpu case for 2 days and there like 2inches long already. ... drop in soil and they just go from there.