Something not adding up

[Jwheels9876]

Tonight playing my rounds I was noticing my drives were going way shorter than what my GC2 was telling me I was hitting them. If I hit one 250 on the GC2 it was flying about 20 yards short in the game. Even a hole that was 40 feet downhill off the tee my drive was carrying shorter than what the GC2 was reading out. Then I go and just check a few numbers from the shot history and compare them to Flightscope numbers and it's upwards of 20+ yards carry difference... something's not adding up. Anyone else seeing weird stuff like that going on?

here's one example from earlier

2018-07-26

Jwheels9876

Black Brook Golf Course

W3

383.00

148.6

1.0

10.0

-9.0

-273

1728

107.7

1.0

0.0

219.19

and flightscope shot with numbers filled in....

[andygg1986]

Maybe check all the sliders in GSX and confirm they are all at zero? I also know that GC2 gives more yardage on low spinning drives and TGC doesn’t. Did you switch to a harder golf ball that spins less?

[Jwheels9876]

No, I've been using really soft Wilson balls for a little while now. Just seemed odd that all my drives were carrying about 20 yards shorter than the readout yesterday out of nowhere. I think my GSX sliders did that before on mem for no reason so I will give them a look.

[DirtyGarry24]

Low spin brotha. Get that spin up to about 2500 and you should be closer. Right or wrong, think that’s the difference. Good luck.

[ProTee United]

The yardage shown on the tournament site is not correct. It does not handle the low spin correctly, BUT if we manually launch the exact same shot from the tee on blackbrook hole#1 the results are perfect. It ended op in the rough left, so ignore bounce and roll.

[ProTee United]

Slightly more carry because of the downhill trajectory.