If I'm honest very, very little. The r7 425 and the r7 superquad are virtually the same driver. The superquad has a black head where the r7 425 is just metallic.
Currently Kenny Perry uses Taylormade r7 irons.
TaylorMade R7 golf clubs are available online from websites like TaylorMade Golf Preowned, R7 Irons, and eBay. Sporting goods stores may also carry them, though inventories obviously vary by location.
If you mean the rule prevented a driver from having a C.O.R of more than 0.83, then yes, it is legal to use. But of course, you can't adjust the weights during a round.
This would be a man's club, although I'm sure a woman could use it.
This is the shaft which was used in the Taylormade R7 425 and R7 460, it is a great shaft. The regular shaft is 55 grams, 3.9 torque, high trajectory with a low kick point, the tip is .350 and it is standard length. The stiff shaft is 65 grams, with a mid kick point, the tip is .355 and the shaft is standard length.
Interesting question. It is hard to say, it probably comes down to personal preference. The Taylormade r7 425 has mobvable weight technology and a really nice traditional shaped head. But the r9 has movable weight technology and adjustable shaft technology. You can actually buy the shaft sleeves which means you could stick any shaft you want in your driver and change it as often as you want very easily. I do not like how the r9 has almost pointy head on it, not the greatest look I think. You can try them both and see what you think, obviously the r9 is more expensive but perhaps worth it.
You will need to use the Taylormade wrench that you got with the driver. You simply unscrew them and put them in the configuration that you want. For a draw, put the two heaviest weights on the heel side. For a fade, put the two heaviest weights on the toe side. For a low flight, put the two heaviest weights at the front of the club. For a high flight, put the two heaviest weights at the back of the club. All these are for the strongest option, if you want the weaker ones, use one heavy weight and one of the light weights. If you don't have the wrench you will need to buy one, it is the same as was used for the old r7 and any other Taylormade club which had the moveable weight technology. Do not use a standard tool because it will ruin the weights.
72
A 9 iron is shorter, and has a little more added loft to it, so you can hit the green and not go over. A 7 iron is a mid iron, and is a little longer, and the loft is less than a 9 iron so you can have a little more added distance than a 9.
3 r7.
R7 rocketfuel