One of the most welcome developments in the Di9’s is the re-introduction of the wide tip shaft technology that was used in the old Deep Red irons. Wilson claim to have improved it even more for the Di9’s by reducing the weight. This means the shaft still helps to cut twisting through the ball but in the Di9 it has been considerably reduced in weight so also helps to increase swing speed and generate extra power and distance.

The Di9’s clubhead features a low profile, wide sole design that promotes a higher and straighter ball flight as well as generating much higher ball speeds from the ultra responsive clubface. The end result is consistently better distance.

Studies show that almost 85 per cent of shots are hit from the centre to the toe of the club and the Di9’s feature a cavity that helps to extend the sweet spot out towards the toe. This means the sweet spot is larger than ever and the result is perhaps the most consistently accurate Wilson iron so far. The cavity itself is covered by a urethane insert that extends the sweet spot across the entire clubface and, as it gets wider at the heel, also helps reduce vibrations and increase feel.

In our tests we felt that the clubs very good and certainly inspired confidence at address. The cavity back in the head decreases in size as you go down through the set, although some may not like the protruding cavity that you can see on the 4 and 5 irons. The sand iron was a little chunky and more rectangular than normal, but it did the job pretty well. If it is not for you then the excellent Wilson Staff TW9 sand wedge could be swapped in.

Throughout the set the Di9s are easy to hit and this is particularly noticeable in the longer irons where you can achieve impressive distance and ball flight almost effortlessly. They are also very consistent on almost every shot, even on mishits, thanks to that wide tip shaft and forgiving head.

The Di9 irons feature a TrueTemper uniflex steel shaft that Wilson claim is suitable for players of all abilities and we would agree, unless you have a very high swing speed. They are also available with a new ProForce V2 graphite shaft with a softer tip for those golfers who need a bit more help getting the ball airborne.

Overall the Di9 irons certainly impressed us with their great performance and for mid to high handicappers we think that they represent one of the best value for money sets of irons in the market.