In any event, either mods were step up from stock. Furthermore, the OL hardware mod was better sounding than the Heavyweight mod. Heavyweight mod was brighter sounding, more illuminated, and the bass was tuned higher in the frequency spectrum. OL was less bright, bass deeper and rounder. The stock was really quite mediocre. Bass is ill defined, but the frequency balance was decent, just lacked resolution, top-end extension, and fuzzy bass.
However, OL wiring was really not so impressive. It collapsed the soundstage, added a brittleness in mid range, and dark sounding. Incognito is totally high-end sound, very cohesive, very smooth. Overall, I rate them as:
For comparison purpose: Linn Ekos - 95%
OL hardware, Incognito wire - 85%
HW hardware, Incognito wire - 90%
OL hardware, OL wire - 82%
stock RB250 - 65%
Also try the following:
(1) Use a broccoli rubber band, wrap around the counterweight, and tighten your end stub like hell. But please don't do it with the arm mounted on the table, you'll ruin the bearing. Got to do it with the arm totally off the table.
(2) Try removing the plastic label from the heavy weight - I heard differences, mainly less glare. Others didn't hear anything.
BTW, the OL design allows using a hex key to fully tighten the end stub, which was probably why it sounded slightly better than the Heavyweight. However, Incognito wiring was better sounding than the OL wire, if you are considering upgrading the tonearm wiring.
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