I mix everything except the sure gel and let it set overnight . The next day I add water and sure gel and stuff 16mm casings immediately. No problem with an 11 lb. manual
Learning correct consistency doesn’t take long, keep at it!
I have had great luck with the mahogany fibrous casings for dry curing.
Seems to slow the drying process and reduce the need for higher humidity
I also strongly recommend mold application as it enhances the flavor and also helps slow the drying process