Our local golf shop is equipped to inject hot melt but doesn’t have much experience. I had 4 grams added to a Callaway Maverik driver head to improve the acoustics. I don’t want to hear the sound of metal. I want to hear a “thwack,” like the sound of a wooden baseball bat.
We placed the hot melt at the high point of the crown, slightly behind the face. This location worked very well in muting a Ping G10 head, but the Callaway head, with a carbon crown, seems to behave differently. What is odd is that the precise point of ball contact on the face seems to be significant relative to the acoustics. Sometimes I get a pleasant “thwack,” and sometimes it sounds a little bit tinny. With low compression balls (60 or less) the sound is always pleasing, but I need to use balls in the 80-100 range. I think Callway’s face technology is a factor in this behavior. It isn’t like misses sound bad and center hits are good. Something else is in play.
What I would like to do is to find out if better acoustics are possible with this head by moving the hot melt. This would be done by heating the head so that the glue becomes fluid, then orienting to cause the glue to collect in the preferred location.
- What location inside this particular head would be best to achieve the desired acoustics?
- How hot can this head become without affecting the crown and/or the adhesive that attaches the crown? I was thinking that boiling water might regulate the temperature within a safe range, while still being high enough to fluidize the hot melt glue.
I have tried many component heads over the years and acoustics have been pretty much the only cause for dissatisfaction. In my opinion, too much emphasis has been placed on getting every last ounce of marginal, imperceivable performance, and not enough emphasis on a pleasing sound. Like watching a great shot, what we hear is part of the experience. Call me old fashioned. I started when drivers were made of wood, and I still play blades. (Anxiously awaiting the TS-4 irons.)
Can anyone help with these two questions? Over the years I’ve learned that the only place for acoustic testing is on the golf course with the balls one plays. The range and indoor locations are not good testing environments.