I used to play the Callaway X-14 pro series which I hit fairly well but wanted to check out some blades. I got these blades 'used' off of ebay way cheaper than the MSRP of $2500, let's just say below $500. I took them to the range the day I got them and hit my first ball. WOW, it went high and straight! Beginners luck I thought so I hit another, again high and straight. Ball after ball I hit well with the occasional mis-hit. I thought blades were supposed to harder to hit than cavity backs. These are the clubs for me. I have sort of the same body build as Tiger just a little taller so I lengthed them 1/2". I suppose his specs a close to myself.