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can you help on offset question?


Breal

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Can someone help me? to translate the japanese specs one 5 iron has 3.75 mm progression and one 5 iron has 2.6 mm which one has less offset is it the one with 2.6 or the other way around please help me out . Thanks

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Correct me if im wrong but by exstensive research i think the higher the number the less offset they go by how far the leading edge goes out toward the hosel so the higher # is closer to the hosel thus less offset progresson is different am i right let me know this is going to make me lose sleep. thanks

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Correct me if im wrong but by exstensive research i think the higher the number the less offset they go by how far the leading edge goes out toward the hosel so the higher # is closer to the hosel thus less offset progresson is different am i right let me know this is going to make me lose sleep. thanks
HMM, YOu could be right! I'll double check.

Joe

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I think you are both mixed up.

Forget the hosel, "face progression" is the distance between the axis of the shaft (a line running down the center of the shaft and hosel) and the leading edge. If the leading edge lined up exactly with the outside of the hosel (part of hosel, closest to the target) there would still be a positive number and the number would only go up as the leading edge protruded more. What "we" commonly refer to as no offset because the leading edge is even with the outside of the hosel could actually be +2.5 mm of face progression.

In the end, yes, the bigger the number of "face progression" is less offset because the edge is sticking out more.

Uh, Joe, how does the US calculate offset??? Did your dog eat your homework? :lol:

Just kidding with you.

Anyway, US OEMs are not necessarily backwards, they are measuring something else and they call it "offset", not "face progression." Generally, they measure "offset", which is how far back the leading edge sits from the hosel (outside of the hosel towards target). So the larger the offset number in the US, the more back the leading edge is from the hosel.

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http://www.bs-sports.co.jp/english/basic_o..._of_club_7.html

This is the way Bridgestone and most of of Japanese OEM measure golf club.

And here is:

Face progression

Face progression is the distance (A) between the axis of the shaft (8) and the leading edge of the club head (10). When the leading edge extends out in front of the axis, face progression is expressed as a positive number (for irons generally, these values range from +6mm-0mm).

I got mix up w/ this one below:

Goose

Goose is the distance between point (7), which denotes an imaginary line drawn from the hosel before it bends toward the face, and point (10), which signifies the leading edge of the club head. A club with a "straight neck" would have a goose of around 1mm, while a club with a "semi-goose neck" would have one of around 2mm, and a club with a "goose neck" one of over 4mm.

*Because calculations of goose are affected by differences in the thickness of the hosel or by differences in methods used to grind and polish forged clubs, face progression is primarily calculated today in relation to the axis of the shaft, which is not affected by such variations.

**"Goose" is sometimes referred to as "offset."

Are you happy now DM? :P

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this was informative but now im feeling i need a valum. you guys are going big this is funny...

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