Tartarus Pro: Why does actuation at 3.6 mm trigger earlier than full keypress?

I’m using the Tartarus Pro extensively in my professional workflow (video editing and 3D), and I’ve run into a behavior that I’d like to understand better — especially from other users who rely on this device.

This concerns the actuation point. In Synapse, I set the actuation to the maximum depth — 3.6 mm, expecting the key to only register when fully pressed all the way down (plastic-to-plastic contact). But in reality, the key triggers earlier, before it physically bottoms out.

What I’ve confirmed:

• Synapse is correctly configured to 3.6 mm.

• Actuation seems to occur around 2.8–3.2 mm (visually and by feel).

• This behavior is consistent across multiple keys.

Questions to the community and Razer team:

1. Is this expected behavior for Tartarus Pro’s optical-analog switches?

2. Is there a way to force the actuation to happen only at full key depression?

3. Has anyone tried alternate firmware, beta Synapse versions, or physical modifications?

I understand the sensor might interpret 3.6 mm with some margin, but precision matters — especially when trying to fine-tune actuation depth.

Thanks in advance to anyone who can shed light on this or offer workarounds!