FlightScope Short Indoor Ball Speed and Swing Speed Discrepancy

[ThunderBear]

I am using my Xi+ indoors this winter to do some speed training. However, there seems to be a discrepancy between Ball Speed and Swing Speed.

My smash factor is usually pretty low even on balls I feel like I crush. For example, if I hit 120mph swing speed and hit it darn near perfect, it will read 171 ball speed which is around 1.42 smash factor. I know my smash factor is a lot high than this as when I'm outdoors it reads normal 1.47-1.50.

Does FlightScope read swing speed or ball speed poorly indoors?

[frankbrank12]

I've had the same issue with my regular Mevo indoors. I've maybe seen 1.43 efficiency, but never above that. i know that GCQ is maxed at 1.45 but I've never seen that high and the bulk are 1.38-1.41 with the driver for me. In my experience on TM recently, I believe the ball speed and think the swing speed is way too high. For example, I registered 175 ball the other day with 126 club. I would say there's almost no chance I'm swinging anything 126. I just assume on center strikes that I'm somewhere around 1.45 efficiency and derive club head from that.

[ThunderBear]

I've had the same issue with my regular Mevo indoors. I've maybe seen 1.43 efficiency, but never above that. i know that GCQ is maxed at 1.45 but I've never seen that high and the bulk are 1.38-1.41 with the driver for me. In my experience on TM recently, I believe the ball speed and think the swing speed is way too high. For example, I registered 175 ball the other day with 126 club. I would say there's almost no chance I'm swinging anything 126. I just assume on center strikes that I'm somewhere around 1.45 efficiency and derive club head from that.

I agree to a certain extent but my feeling is there is no way ball speed should be more accurate with a driver on a short indoor mode than swing speed. Swing speed shouldn’t matter the mode because you can track SS anywhere but ball speed probably needs some area to travel to be really accurate especially as you get up to high BS.

[zuhdi]

simulators like flightscope and trackman struggle to measure high ballspeeds indoors. i think once you go higher than 120 swing speeds it struggles with the ball speed measurements.
makes sense since it will have so little time to track the ball over such a short distance.
sims like the GC shouldn't have these problems indoors.

[Gresh12]

I’m not sure it’s a ball flight distance problem. As noted above swing speed wouldn’t be impacted and the ball speed should be measured basically right away (spin tracking is what takes flight time).

I don’t have the speed to test it myself as I’m topping out at 113 mph these days (and my device is a Mevo+) but I hit on Trackman every week with some good players in bay next door and they’re hitting high 180 ball speeds with “proper” smash factors indoor consistently.

Don’t take offense but you say you’re working on speed training so are you sure you’re getting the same quality of strike you’re used to and delivering same dynamic loft? I ask because one of the guys I play with has me on swing speed but delivers more loft so his smash is lower than mine even when we both hit middle of club face.