+1 on the Dennesen Soundtractor. Super accurate and easy. The Neve knockoff has exact geometry but is not as easy to see visually in the target. The original Dennesen (Baerwald) uses a dimple for the stylus just like the brilliant SME protractors that are supplied with their tonearms. A great feature for older eyes :-)
Any small needle-nose type pliers can be beneficial for attaching cartridge clips only. For removal, I prefer to scrape the clips off the cartridge pins using a micro straight edge screwdriver which prevents any trauma when the clips are released. Use of a small exato-knife can help get things started if the clips are buried to their edge against the cartridge body or plastic color rings.
FWIW - I'm also partial to the use of what VPI calls an azimuth rod. Used longitudinally on top of a cartridge/headshell will allow for a neutral VTA measurement prior to tweaking. Unfortunately, many headshells are not on plane with their armtubes . . .
Any small needle-nose type pliers can be beneficial for attaching cartridge clips only. For removal, I prefer to scrape the clips off the cartridge pins using a micro straight edge screwdriver which prevents any trauma when the clips are released. Use of a small exato-knife can help get things started if the clips are buried to their edge against the cartridge body or plastic color rings.
FWIW - I'm also partial to the use of what VPI calls an azimuth rod. Used longitudinally on top of a cartridge/headshell will allow for a neutral VTA measurement prior to tweaking. Unfortunately, many headshells are not on plane with their armtubes . . .