[Wavytone]

Well I’m stunned to find you’ve joined this exclusive club, Lewis. Which Santel ?

I’m well aware this seems completely contrary to the long established mantra (must cool the OTA and force-ventilate it) but it has only been recently accepted that there really is an alternative - insulation - that is entirely effective at stopping the internal tube current and helps with dew as well.

If you do use insulation, the colour of the OTA is irrelevant if you’re going to wrap it in a cover of some sort. You could leave it bare or paint it black with pink polka dots if you like.