How can I set the Garmin R10 to take into account the % compensation of practice balls?

If You're talking about practice balls designed to go way less distance than ordinary balls, You cant.

It's been a Year or so since I requested a way to individually set boost on each club, but You know how Garmin responds to user requests.

Max You can do it change weather settings to max altitude, max temp and max humidity.

This will help some, but not fully for the way lower smash factor / ball speed You will have with practice balls vs real balls.

Still some use though if You want to practice club data as those readings will be correct.

But not very useful for hth.

Thank you for your answer. I will try your solution.

just a note on humidity: it is not better to decrease the % of humidity to increase the bearing capacity of the ball?

best regard

Actually no.

Apparently vapour is lighter than dry air, so ball should travel further in high humidity.

That being said, it's the parameter that affects distances the least. 

Going from min to max humidity should only give approx 1 yard increased distance.

Temperatur slightly more: https://golf.com/instruction/cold-weather-golf-ball-formula-yardages/

Altitude the most effect: https://www.titleist.com/teamtitleist/b/tourblog/posts/the-effect-of-altitude-golf-ball-aerodynamics

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Garmin-Cody

The R10 actually detects some types of practise balls. I have myself used Almost Golf Balls in the past.

The smash factor of these balls are way lower than normal golf balls, but the difference when using wedges is not that big.

It should be very easy for garmin to implement an user selectable "boost factor" for each club. For instance 5% ball speed bost for a lob wedge and 50% for a driver.

This would then allow for use of practise balls, and even better results on range with range balls.

This is a pure sw modification, and it is only depending on will to do so.

GS Pro community is actually better than Garmin in so many ways.

Currently they have developed a direct connection to PC, putting integration by use of camera, and improved spin metrics.

i would not be too surprised if a boost for ball speed will also come if a good programmer wants to use practise balls..

Yeah the R10 can record some practice balls, and the design of the specific ball will vary as to the metrics and accuracy of the shots recorded. 

Ultimately if users are hoping to improve play during an actual round of golf, using a ball that they would prefer during a real round would be ideal for recording shots. 

Using practice balls or range balls if desired is fine as well, especially for those wanting driving range simulation if they are wanting to use balls similar to what they hit at an actual driving range. 

It is important though for users to keep in mind that ball performance will vary depending on the ball they are using, and some balls will perform differently based on design and other factors. 

The cool part is that there are so many different options out there for players to use where distance, spin, forgiveness, and limitations to the ball can help per the training needs desired. Practice balls are perfect for those repeatedly hitting the ball for training purposes, to limit wear and tear on golf balls they would like to save for actual rounds of golf.