Is Bushnell slop reader accurate?

[comoco]

I have been using leupold GX-4 slop reader for several year and just recently I decided to try out the Bushnell Tour X.

 

 

So I had both going out to the golf course which was mountain course and tried whether both had the same measurement or not.

 

I found that for non-slope function both worked pretty close to each other. However, for slope reader, both were far different. Bushnell was just small yardage different from its non-slope but Leupold was quite significant add-in yardage.

 

I shot both at the same distance on 1 of Par 3, middle pin.

 

Bushnell was reading 145 yards on non-slope and 146 yards on slope reader so plus 1 yard.

Leupold was reading 145 yards on non-slope and 154 yards on slope reader so plus 9 yards.

 

So I hit a couple shot with my 8 iron and those were short to the green. Then I change to 7 iron which I normally gain 155 yards and it's right next to the pin.

 

I tested several holes and result pretty similar to above. It showed that Bushnell never added more than 2 yards of any holes, while Leupold added pretty much between 2-12 yards. And to my test, I found that Leupold is more accurate on the slope reader.

 

That's my experience and if anyone has used any of these, please kindly share your thought. I tried to find review in internet and it seems no one has ever tested comparing both side by side.

 

Thanks,