Hello Neil.
As I wrote in my message English is not my mother tongue and this makes dificult to me understand, sometimes, the English writen in the forum.
Maybe for the above reason, I couldn't understand completely the last paragraph of Your post.
You write in Your message “I was most disturbed to se Dias Costa's "two simple testes" – I thinke hes talking bo%&*$^&£…. no signal “.
I'm so sorry My message provoked that efect on You.
Can I give You any further detail to help You in some way understanding what I've done?
I assure You the testes I made are real and were made just by copy from the three editors followed by paste to the forum editor. Without any intervention on the text.
Best regards
Dias Costa