I have noticed that the USGA has a conforming club list for drivers and a separate list for all other clubs (irons, hybrids, and fairway woods). Maltby clubs seem to be listed under the manufacturer “The Golfworks,” so alphabetically the “T” is important in the USGA’s database.
Whereas the current offerings for irons, wedges, and drivers are listed there is nothing for fairway woods. The only hybrid listed is the KE4 Tour FDI. I am probably an outlier compared to most of your customers but this does deter me from purchasing these clubs from The Golfworks. I am sure they conform, but obviously your sales volumes make the cost of submission prohibitive. (I am aware that the groove rule does not apply to the lower lofts typical of fairway woods, but there is probably some other testing, such as COR, which would be relevant. Other manufactures have fairway woods on the list.)
Let us know if I am missing something. At this point I won’t purchase anything not on the list. A few years back you produced a beautiful driver in the KE4 ST-1, which for one reason or another never made it to the list.
Here is the link I use to the database: https://www.usga.org/rules-hub/grooves/informational-club-database.html
If you click the first link on that page “Search the Database” and select the club type and manufacturer (The Golfworks) at the bottom one can quickly find all Golfworks submissions within the category.