Hm must have missed this.
I've done the taco method and found it not ideal especially for Kodak sheet film as Kodak has the hardest to remove Anti-Halation layer known to mankind and the rubber band involved in the taco method means the non-emulsion side under the rubber band does not get washed enough.
I'm incredibly slow and process sheets one by one. I have two 2(35mm) reel Paterson tanks and I dry one inbetween agitations of the second one. A 4x5 sheet fits nicely in the 2 reel Paterson tanks sideways (4inch side being vertical and 5 inch side slightly curved around). The concave lid of the Paterson tank ensures that the film doesn't flop around too much but the liquid does freely move on both sides of the film to clear AH layers (Fomapan film also has AH layers). Just remember to put in the center column as that's part of the light trap and if you forget that, your tank is no longer light tight. Picture here:
http://filmwasters.com/forum/index.php?topic=1918.msg16689#msg16689 You can sort of get two sheets in but I've had tiny "bruising" scratches of the film on the corners. Never into the actual image area but for contact printing, it wasn't ideal.
Since 4 sheets of 4x5 is equal to 1 roll of film, I reuse the solution as quickly as I can all in one session. I usually do 800ml of solution at 1:25 rodinal so 800ml water and 32ml Rodinal. Because it's also a minimum amount of 10ml per roll of film for Rodinal, I sometimes cheat and if I'm on a roll, I can get another "roll" equivalent out of the solution (so 8 sheets out of the 800 + 32ml solution).
It's all very haywire to most people but it works for my sheet film for my cyanotypes.
