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I really like how you don't need to calibrate the R-Motion between shots (just align the club face square to the target). I do have a question though, does it matter if there is any shaft lean at address? I typically have a few degrees of forward lean of the shaft (especially for irons and wedges)? Or does the R-Motion account for this? Related to shaft lean at address are there any assumptions of shaft lean at impact (more lean than what was at impact for example)? Or again, does the R-Motion deal with this as well in its calculations?
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I really like how you don't need to calibrate the R-Motion between shots (just align the club face square to the target). I do have a question though, does it matter if there is any shaft lean at address? I typically have a few degrees of forward lean of the shaft (especially for irons and wedges)? Or does the R-Motion account for this? Related to shaft lean at address are there any assumptions of shaft lean at impact (more lean than what was at impact for example)? Or again, does the R-Motion deal with this as well in its calculations?
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Rapsodo - Is shaft lean used in the calculations? If so, then is it necessary to address the ball with zero shaft lean? (so it can measure relative shaft lean at impact). And if not, then perhaps we should use dynamic loft (static club loft - expected forward shaft lean) for the custom loft settings rather than just the static club loft?. I would think this matters a great deal when calculating distance (to determine correct launch angle) and was wondering if this also is contributing to folks not seeing the distances that they expected?Last edited by rrobinson; 04-13-2017, 12:32 AM.-
Ok cool - got it. So no need to have the shaft lean at zero degrees at address then - just have the club face square. -
Maybe I'm confused but aren't they saying that yes shaft lean should be close to zero at setup? He says "we use shaft lean at address and impact". So if you have forward shaft lean at address, the device will think this is zero degree. If you were to return the shaft to this same degree at impact, it would calculate the loft of the club at zero degree shaft lean when you really have the club head hooded a bit for a lower shot. Or are they saying that the device recognizes whether or not your shaft is leaning at setup and takes that into account? -
I'm guessing your latter interpretation "are they saying that the device recognizes whether or not your shaft is leaning at setup and takes that into account" but I agree with you that it's not a definitive answer to "Do you need to zero your shaft lean at address - yes or no?". Guess I'll try some variations on the range and see if I can figure it out...
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I would have to think it would be impossible for the sensor to know if you have forward shaft lean at address. My understanding is it takes your set up at address and assumes that is square and then takes it again at impact and calculates based on that.Comment
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I'm sure it has accelerometers which use gravity as the reference. So it knows what "straight up" is etc. It should be able to determine shaft lean at any given instant whether at address or during impact. I agree their comments are confusing.
That is a different issue from needing to set up with a square club face. That restriction indicates it doesn't have magnetometers so doesn't have a reference for the azimuth direction.
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