Stiff shafts are for people who have a swing speed of around 90+ mph, so if you are happy with how you hit your driver you could get stiff shafted irons, but you don't have to.
If you currently use regular shafted irons and you hit the ball either excessively high or tend to hook or pull it, you should go to stiff.
For best results go get custom fit and they will be able to tell you which shaft is best for your game.
You can get them in regular, uniflex or stiff, depends which ones you have/get.
You can replace that shaft with any on the market. Since that shaft came with the Ping ISI Irons and had a firm flex, since the W44 were regular, you should get a stiff shaft put in for a replacement.
Take the grip off. If there is a green mark at the butt end of the shaft the shaft is stiff.
For beginners I would recommend a regular shaft in your driver, these are aimed at golfers with slower swing speeds, as you progress through the game you may want to go to stiff or even extra stiff.
Most golf shops
A wise man's guess would be Stiff Regular flex, between Stiff flex and Regular flex.
97 Miles per hour is quite a fast swing speed. You should go anfd get custom fit and see what they say. I would think that you would be told to get at least a stiff, if not an extra stiff. It is completely up to you what type of shaft you get.
no, like almost every porfessional golfer he has steel shafts. the exact model is true temper dynamic gold probably X100 (extra stiff)
Call for help immediatley. The driver who ran over you should be aware that he or she hit you, so that person should call 911 to get medial help. While help is on the way, the driver should get any part of cloth to stop any bleeding. Do NOT try to move and tell the driver not to try to move you; if any bones are broken, moving you will only make it worse. Make sure to stay stiff and still until help arrives. After the medial help arrives, you should be fine from then on.
golf with strong swing
hard and firm..... and stiff
A good idea is a large headed high lofted (10.5 degrees plus) and a regular flex shaft. There may be a temptation to get a 9.5 stiff and try and hit it as far as you can, but the first driver i suggested will pay dividends in the long term. The driver is a hard club to hit for beginners due to it's low loft and long shaft.