A question for all you...

[dss]

...club techies out there. Why do metal heads have less bulge and roll than wooden heads? A timely answer will be greatly appreciated!

[rwh]

...club techies out there. Why do metal heads have less bulge and roll than wooden heads? A timely answer will be greatly appreciated!

How much bulge and roll did wooden heads have?

Depending on manufacturer, metal heads have 11 - 13 degrees bulge (heel to toe curvature) and 11 degrees roll.

[blehnhard]

The amount of bulge and roll (if done properly) is determined by the location of the Center of Gravity in the clubhead.

COGs more to the rear require more B&R. COGs closer to the face require for less B&R. Most metal heads have the COG closer to the face (reduce spin) so the need less B&R.

B&R is designed to help reduce "gear effect" which is greater when the COG is farther from the face.

Bruce

[Mike O]

The amount of bulge and roll (if done properly) is determined by the location of the Center of Gravity in the clubhead.

COGs more to the rear require more B&R. COGs closer to the face require for less B&R. Most metal heads have the COG closer to the face (reduce spin) so the need less B&R.

B&R is designed to help reduce "gear effect" which is greater when the COG is farther from the face.

Bruce

To the point and well explained!

[Yoda]

Great post, Bruce. Thanks!

[dss]

Your answer is greatly appreciated!