Profiles are no longer published per fixed layout. There is no 5-10-5, 4-10-4 or 3-9-3 file any more. There is now one profile per middle segment, written as `X-10-X`, and you tell the plugin how many LEDs are on your sides.

So the rule is: count the middle run only, and download the profile for that number.

Published middles are 0, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 20, 21. A ten LED middle takes `X-10-X`, a sixteen takes `X-16-X`. If your device has no centre run at all, take `X-0-X`.

Then set your side count in the plugin, at LED Devices > RPM Telemetry > Configuration > Number of side LEDs (per side). The preview updates live so you can check it.

Two things people get wrong:

• Count ONE side, not both. A device laid out 6 + 12 + 6 loads `X-12-X` with a side count of 6.
• Split side runs still count as one side. A 9/3/10/3/9 wheel loads `X-10-X` with a side count of 12, because 9 and 3 are both on the same side.

⭐ The single most common problem: only ONE device on your rig runs the telemetry profile. Give it to the wheel or DDU you actually look at. Every other LED device loads DNR Co-Pilot instead, which has its own start position and LED count. Number of side LEDs is one setting shared across the whole rig, so two telemetry profiles can never both be correct.

There is a full walkthrough at Support > Tutorials > Choosing your RPM profile.