Thanks for your reports. I'm testing my new vertical T antenna for 75m, but conditions are less than ideal due to a G1 storm conditions. I note that propagation on 75m is behaving very differently to 6.3 Mhz and above, and I think this maybe due to the stronger effect of E layer propagation on lower HF bands and on MF. It seems the F layer is currently less affected by solar storm conditions.
The vertical T antenna is radiating efficiently, so I will just need to wait for minor G1 solar storm conditions to stop affecting lower HF band propagation and for night time coverage to stabilize.