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z101... taper or parallel?


papachoi

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I'm pretty sure that all Bridgestone/Tourstage irons are .355" taper. Does anyone have information otherwise?

Are you the only owner of the Z101's? Could a prior owner have had them bored out to .370" parallel? If you are the only owner, did you get them from an unimpeachable source, or is it possible they are counterfeit? The Rifles also come in .355" and .370". Is it possible that there is confusion on that end.

I'm just asking questions, not drawing any conclusions. The reason why I'm a little bit wary about accepting things at face value is that I have a set of TS 202's that I sent to an apparently highly regarded internet clubmaker (NOT a sponsor on this board) to reshaft these in a high end graphite shaft. He told me he was going to bore them out to .370" so he'd have more flexibility in getting his specs on the shaft flex profile just right. He charged me more for the "extra work". Later, I decided to go back into steel shafts, and ordered .370" Rifles for the job from a highly reputable internet shaft vendor. I took them to my local clubmaker, and he called me and told me that the parallels didn't fit, and that the hosels were .355". He was right. I had a .355" "known" shaft sitting around at home, and I took it and tried it and it fit perfectly in the Tourstage hosel. The guy who did the previous work had overcharged me. My point of this ramble is that sometimes you're not sure about the hosel configuration even when you "know" what it is. There can be factors beyond your control that can lead to confusion and misunderstanding about the geometry of either the shafts or the clubhead. Using a "known" .355" and .370" shaft to figure out the geometry of the hosel for absolute certainty should settle most of the questions. Good luck.

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i just finished installing parallel PX's into the z101's. i know they are not counterfeit, but now am concerned as to whether or not the heads were "tampered" with.

Somebody may have "bored them out" to .370". They should play fine, and you'll have a wider selection of available shafts in the future.

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  • 2 weeks later...

He got these from me on trade for some MP-32 heads. He was in a hurry for them and I did a quick pull that evening and got them out express the next mourning. He told me they were parallel when he recieved them and I checked the shafts and found that to be correct. I also assumed they were taper and planned on reusing the shafts in the MP32s. Looks like I'm also buying some shafts. Many manufacturers supply both specs depending on the original shaft but I don't know if that is the case here. I would think you could tell if they were bored by looking at the finish inside the hosel.

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