I had the big daddy. The ND5. No good
in what wayYou could blind the astronauts in the international space station. Awesome beam of light. But when you opened the beam up to to match the field of view through the scope it just didn't cut it. Not bright enough.
Eye shine was also poor.
I've spoke to lads who swear by the ND3 but in my opinion it's just not worth it for the money.
??