The shaft is in the current catalog for irons. It does have an upcharge. There are numerous users in the past that have noted their preference for Aerotec steel fiber shafts.

An iron set can be ordered with those shafts, as can any other shaft in the catalog. Not sure if this answers your question. You can scroll through the irons on the website and there is a button for custom options. The 80 g and 110 g shafts are also offered. Loft, lie, swing weight, and length can also be specified at n/c as well

Thank you Don. Yes, they have it on stocks. By the way, my order is already on production.