Longer hosels in the scoring irons raise CG to help generate a penetrating flight with more spin. Progressive hosel lengths that are shorter in the long irons keep CG low. Some of the things packed into the F9 irons are typical of what you’d expect from Cobra in this category. If some other things have to look a little bit different for that to work, so be it.

Ultimately what Cobra was seeking to create with the F9 SPEEDBACK is an iron that’s truly long, truly forgiving, and doesn’t rely on an overly long blade to make it happen. Mizuno’s JPX919 Hot Metal is good, and you can make a case for PING G700, but that one has a blade length that’s longer than most. Cobra’s position more or less holds true when you consider MOI and Sweet Area. They’re forgiving, but in the grand scheme of things, they’re often not among the longest.

I suppose the converse is true for many game-improvement designs. They may be long, but despite manufacturer claims to the contrary, they’re not particularly forgiving. The final version is more conventional than it could have been, but Cobra is still banking that its F golfers (80% have handicaps above 10) are willing to buy into something that looks a little different because of the improved performance it delivers.į9 SPEEDBACK is Cobra’s attempt to resolve a critical flaw with most distance irons on the market today. It turns out, F9 SPEEDBACK wasn’t the most radical design on the table. Very early prototypes featured F7 driver weights welded to the heel and toe portions of the iron. What you’ll likely notice are boxier heel and toe regions that house a significant amount of tungsten.

King cobra f9 reviews