Bent98, I can't see ypur cab pics from work, they're blocked out but I will check at home and let you know.
Just to clarify: the topgun I have works just fine through my tinted glass so this might be dependant on just how tinted the glass is. Also, one of my LED's is mounted behind the tinted glass, the other is mounted underneath the marquee. Hard to explain, I'll post pics tonight but my point is, your LED does not have to be exactly on top of your monitor, this is why LED's work with various different size monitors/TV's. I believe this means you could have the LED bar of the Ultimarc solution right on top of your cab.
It's all in the calibration which determines where you point, you shoot. This is the reason why for some who are having trouble calibrating/hitting corners, the solution has been "when you calibrate, point further away from the corner of your monitor (for the topgun, and this helps with accuracy immensely!). This is true of the topgun, I'm assuming its true of the Ultimarc solution as well. The only potential issue I see, if you have the LED bar too far from the monitor, this would mean you'd have to stand back further.
Please correct me if I'm wrong folks, my experience is limited to the topgun only.
Rob