Mach Scale in Air Speed Indicator too Small

This may be a known issue. But I searched this forum and couldn't find it.

The Mach Scale in the inset window of the Air Speed Indicator is too small. The window size is ok, it's the scale that is too small or too coarse. There is a tick mark for 0.5 and the next mark is for 1.0. No graduations in between. I can't believe it is this way on the real F-15. Take a look at the DCS F-5E-3. The scale is much more expanded with a mark every 1/10th of a Mach and a half-mark in between those. See the pictures. The F-15C should have a Mach scale like the F-5E-3's, that goes from 0.5 to 2.8 or maybe 3.0. I don't know what the top value on the real indicator is.

From M1.0-2.5 there are 0.1 increments and this can be looked at in the real manual. I could not find anything on the gap between M0.5 and 1.0 though.

If you need an exact Mach number you can have it on the HUD in combat modes.