I’m looking to build a KE4 Max 7 iron to test out. Been playing with ProLaunch Blue R flex shafts in my irons for a while and wanted to try out a steel shaft. I hit my 7 iron about 150-155yd. I was looking at trying out the True Temper Score LT or Nippon NS Pro 950GH. Any thoughts on those or recommendations for any other steel shafts?