That said, it is a bit fussy and time consuming to use. Since using ULF is incredibly time consuming anyway,

This is what I call a bad execution of a good idea, sorry but it does not take me any longer to use my 12x20 than it does to use my 8x10, so spending 20 minutes fiddling with a gadget seems to me a waste of time. In any case, I have heard far more times it is not worth it, I am just passing along the info I have.