FAQ

This page is run by @engineeringolf, an engineer with club design experience inside golf OEMs.

I intend to grow this page over time. If you do not see a brand you'd like info on, send an email to [email protected], and I will be encouraged to add it.

In due time. I appreciate your enthusiasm and will accommodate based on demand.

Clubs are sorted by each manufacturer's lineup and attributes listed on their respective websites, but some choices are made subjectively by @engineeringolf.

Sorting is not always trivial. For example, a club like the PING G440 K is difficult to place. It is the highest MOI in the lineup, but could also be considered lower spin than the G440 Max. High MOI will be the deciding factor that lands this club in the 5 spot in this case.

Some clubs are described by their manufacturers as having a stock bias (often draw clubs). And some come with adjustability and weight locations labeled draw/fade. The labels shown denote the bias options specified by a manufacturer for that particular club.

Some manufacturers offer lightweight builds. If the club is a separate head in the lineup, it will have its own card (e.g. Callaway Quantum Max Fast, offered stock as a lite build). If a certain head is available for purchase in different weight configurations, it will be the same card with a "click for alt build" option (e.g., TaylorMade Qi4D Max & Qi4D Max Lite, same head available in different weights).

The listed attributes are those provided by the manufacturer, and the terminology varies. I publish exactly what OEMs publish. When that data isn't available, the brick-style attribute bars are omitted.

The choice between Urethane and Ionomer is one of the most impactful equipment choices you can make, which is why I have chosen to separate the categories.

Urethane covers are soft and flexible, allowing the cover to grab into the clubface's grooves. This produces higher spin, lower launch, and more greenside control. The tradeoff is the cover is more susceptible to scuffs and wear, and is priced higher. It is the cover of choice for Tour players and serious amateurs.

Ionomer covers (often referred to as Surlyn) are firmer and don't flex into the grooves nearly as much. This produces higher launch with lower, more variable spin, and less greenside control than urethane. The cover is usually thicker, and far more durable. Ionomer balls are typically priced lower and marketed toward slower swing speeds.

Card position within each row is intended to loosely compare models across brands. That is, a ball in the "2" spot will be approximately comparable to another brand's "2" spot.

Sort by Spin orders each brand's lineup from highest to lowest overall spin rating. It sorts first by greenside spin, then long game spin.

Compression is a measure of how much a golf ball deforms when struck. Higher numbers (100) are firmer and harder to compress, lower numbers (50) are soft. Despite marketing that often recommends softer balls for slower swing speeds, many studies have shown that firm balls are longer, even for low swing speeds. It is very easy to "over-compress" the golf ball, causing loss of energy transfer. Soft balls are often reserved for the Ionomer lineup, and the softer feel is preferred by some players.

The gapping tool is a resource you can use to enter your clubs and analyze your yardages. It is also a place to store & organize any future bags that you are considering. Sending these to TGE for review in DM conversations is a key component to the subscription tier on 𝕏.

The Wedge Matrix is intended to help you to organize your less-than-full shots. Type in your stock wedges, then generate a matrix of your other useful yardages. Can also be used to log your flighted shots, draw vs. fade, etc. Just as many caddies would print & store in a yardage book.

Loading your profile with key attributes about your game & conditions will help TGE assist you if subscribed to the subscription tier on 𝕏. In the future, this may be used to inform a recommendation engine to assist you with tweaks, fittings or purchases.