someone please help me solve a mystery i have in my head. and before anyone gets all potty mouthed i do have some sense not much but some. i remember or think i do about a company a few years ago offering for sale a arrowhead design that was round. i think it was afourblade design but eAcHblade was connected with an additional curved cutter or bleeder. if you looked at the arrowhead from the frony it resembled an x inside a circle. maybe this was a dream but again maybe someone else remembers this. thanks guys and gals for the help.