I repeat… it DOES NOT show 7200rpm
I think you're right that it shows 7k, and not 7200.
I cannot check right now, as the ecu in question is back with JUBU at the moment, getting some mods, inc a cruise control functionality update, and an exhaust valve control behaviour change (it was loud in all 3 driver modes, which I didn't like), and these changes required them to open the ecu, so they needed to physically have it, rather than doing a remote session.
My point is that the engine ecu can/does change the display, and yes, 'maybe' there is some strange limit within the screen control module that means 7k is the max it can display, but the Syvecs ecu definitely 'changes' the redline display and other aspects of the driver display, it does not show a 6800rpm redline with the Syvecs ecu installed.
I wasn't particularly bothered by the display redline, as it wouldn't be the first time in my life I had pushed a tacho needle into the red on one vehicle or another. As long as the engine will do what it's supposed to, I'm happy.
I concede it would be 'nice' if the driver display graphics mirrored the actual redline, but it's not the end of the world, at least not for me.
The original statement from VF was, 'The dash will still show 6800 because that CANNOT be changed'. This is not correct, and is what I argued against.
As I said, good luck with the tune, I hope it pans out well.