While I'm nowhere nearly as accurate or consistent as you, Mike, I had similar results when I built the TS3 set that replaced the KE4+s. A bit longer but lower trajectory and lower spin. I initially assumed it was a result of going back to steel (the KE4+ had graphite shafts), but maybe it was the heads (??). I simply gave up on the TS3 6i, briefly using a mixed set from 6i up. I've since switched to hybrid irons from GW through 5i.I’ve been playing with mixed sets of irons. When I started playing golf again 2 years ago I built a set of TS1 irons 5I-GW. The 5I was the first to get replaced by a 5H. Then I went lighter shafts with TS1 IMs 6I-GW. Eventual I gave up on the 6I as it only carried a few yards farther than the 7I. When I did testing for new irons at the end of 2023 I had a TS3 6I made. At the end of this year I pulled out the TS3 6 iron and started playing with it. Turned out it was more forgiving and a touch longer. So, I got to thinking, why not build a TS3 7I and see what it does.
So, here’s what. I found. The TS3 7I was 4-6 yards longer in carry than the TS1 IM. The launch was <1* lower, spin was ~200 less, but height was similar. With the testing in the sim with the TS3 6I and the 5H, the 6Iis still out of the bag, but my gap from the 8I - 7I is better and the gap from the 7I to the 5H is better too. Gotta update the signature. At least for now.
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