Tippet
Tippet line comes in 0X to 8X (0X is the biggest and 8X is the smallest) which is once again cryptic. There is however a simple system for determining which size to use for any given situation.
Divide the size of the hook by 3 and round. For example; if you are using a size #14 fly/hook 14/3 = 4.6 so using a 5X tippet will work fine. When using a #12 fly/hook - (12/3 = 4) - a 4X tippet will work best.
