Resonance test on modified Lenco 75/78 tonearm

Testing the compatibility of the Audio Technica AT95E (low end of medium compliance) and the Denon DL103 (low compliance) on a Lenco tonearm modified with a low mass carbon fiber wand. The tonearm is tweaked (secret) to be compatible with a wider range of cartridge compliance.
A low mass tonearm normally goes well with a high compliance cartridge. Both the AT95E and the DL103 are towards the low compliance. However, in this video the lateral resonance of both carts are within the ideal range of 8-15Hz and the vertical resonance is hardly present.