Slightly taller FM antenna mast goes up. But is it too tall?

I haven't measured the height, so I cannot say how tall exactly this is above the ground. I just needed this to be at the far end of the garden so it was as far as possible from noise levels produced in the bungalow where there are PLT devices and a rooftop full of solar panels.

Why "too tall"? Well, I decided to replace the top mast section, which was only a couple of feet in length, with one of six feet. The new section is only an inch diameter and fairly thin walled, so I didn't know if it was really up to the job. I thinkt his will probably put unnecessary strain on the G-250 rotator too, so it is only a matter of time before I need to lower this and put the shorter, wider section back. The antennas are surrounded by trees, as you can see, and it never gets too windy here, even during winter storms.

Here's a short video of my erection!!