Collagen is not as elastic as natural casing. Therefore, it is not as forgiving for over stuffing. Twist linking requires under stuffing by an amount which works best for you.
No. Collagen casings should be kept dry and never soaked before using.
Yes. It is a natural protein synthesized into a casing. Some wide diameters and collagen used for large slicing products may be too tough to chew but they are technically edible.
The smoke cycle would depend on the type product to be smoked and the type of smoke house used.
Place unused portion of collagen in a plastic zip lock bag and store in the refrigerator.
Collagen has "memory" therefore it will always want to go back to it’s natural state. However, it can be linked by hand if braided to hold the twists. Some linking equipment can be used quite successfully.