Mkseven, am with you on the "NP sheer tips"
From memory think Nebbian or Gestalt isn’t a fan of them either.
Bloody things fail at a sneeze and god knows what the concept ever was, but am sure it never came to fruition. Pity as I have a Diablo that goes well for age but has one of these on it
Keep two spare in my kit, can now change them in about 3 minutes.
Even had one other approach me, looked at the Diablo and came back with a spare he had in his kit he never used, and gave it to me with a sympathetic look on his face
circa late 80's
