I’m building a senior set for myself. Using a lighter true temper regular shaft. I just can’t decide which is the better performer. I lIke the look of the KE4 tour better than the KE4s. Feel is the most important for myself, because I moving from about 3 sets of forged maltbys. I think the KE4 tour might have the edge. All comments if you’ve played both are welcome.
I built a set of KE4 Tour+ irons with the XCaliber Tour X shaft (no longer available) in stiff flex and it’s a fabulous set. Interestingly, I’m not using them now since I also built a set of KE4 Forged with the Project X 6.0 shafts and I’m still enjoying them! Highly recommend both heads, although since the KE4 Forged irons are discontinued, there are a limited number of sets left. https://www.golfworks.com/maltby-ke4-forged-irons/p/ma0218/
The KE4 Tour + and the KE4 S are very similar in their playability. The Tour + has a less offset and 1 degree weaker lofts, but other than that, they are very similar. If you’re coming off playing more traditional forgings, the less offset of the Tour + might look better to you, but as far as performance and feel, it’s a total toss up, in my opinion.