Traditionally, Hybrid shafts are much heavier than Driver ones!
I have a 90gm (Fuji 904HB) Hybrid shaft that feels great, but an 83gm (Code 8) Driver shaft feels really sluggish! 65-70-ish seems to be my 'limit'!
Oh and Hybrids are often different diameter tips - that 904HB only comes in .370! Driver hosel widths are generally .335 or .350!
