Is there one parameter that you can look at to determine toe forgiveness of a golf club?
The longer the C-Dimension, which is the measurement from the hosel centerline out to the horizontal center of gravity, the more stable an iron design will be (or the more forgiving it will be). That being said, the vertical cg also needs to be in a good position, specifically not too high, for the overall playability (forgiveness) to be considered at a high level. Combine a longer C-Dimension and a lower vertical cg, you should have a high level of stability on off center hits.
Britt Lindsey
I ran across this statement on another golf forum
“The final MPF score isn’t a measure of forgiveness. The closest that the MPF data comes to such a measurement is the MOI, which is in the detail data. MPF final score is essentially a grade of how close that part clubhead is to Ralph Maltby’s design philosophy (low cg, cgin center of clubface, MOI, etc)”.
Any degree of truth in this? How does MOI affect forgiveness? I see a number of heads with low mpf’s and high MOI’s and vice versa. I’m not seeing much correlation between mpf and moi.
First, let me suggest that if you want to understand MPF (Maltby Playability Factor) better, you should read Ralph Maltby’s book which goes into extraordinary detail. https://www.golfworks.com/the-maltby-playability-factor-mpf-book/p/rm9001h/
Second, whomever it is that you are quoting has badly missed the mark by assuming the MPF is just about “how close that part clubhead (sic) is to Ralph Maltby’s design PHILOSOPHY” (emphasis mine). It’s not about a philosophy. It’s about precise measurements based on factors that are key to making ball-striking easier. Obviously, this person has never read Maltby’s book!
Third, Ralph says: “MPF is based on specific mass and dimensional properties of the ironhead itself. The three basic properties are: – The Basic Vertical Center Of Gravity location (BVCG)
– The Horizontal Center of Gravity dimension from the centerline of the hosel (“C” dimension).
– The Moment of Inertia (MOI)” p. 6 The Maltby Playability Factor.
To summarize: if you want to know about what makes clubs easier or harder to hit, Maltby is the expert and the information he gives us is accurate and dependable! Hope this helps you! Michael