Tonearm for Technics SP-15

OTHER ARMS with VTA on the FLY that fit on the SP15?

VTA on the FLY seems to be the feature to have to make swapping headshells easy enough to do it without hesitation. One arm, 3 headshells: a MM, a MC, a Mono, ready to go.

Other that the bejeweled EPA 100 or 250, there must be other maker’s arms that fit.

JVC Victor 7045?

Is JVC Victor 7085 too long to fit under the dust cover?

Acos Lustre GST-801 should fit, I can measure mine.

other VTA/FLY models that fit?

Reminder: REMOVABLE HEADSHELL

This is an example of a JVC Victor with proper rubber gasket with no sag

these people make a separate VTA mechanism for SAEC and Fidelity Research Arms.

Yeay? Nay?

The 250 comes with 3 different arm

To be precise, I would like to underline that Epa 500 is only the common base for all arms compatible with this.
Then there are these barrel interchangeable for base Epa 500
Epa 250 has an S-shaped barrel and a shell with an interchangeable ​EIA attachment.

Barrel with fixed shell
Epa 501 H
Epa 501 M
Epa 501 L
Epa 501 E
Epa 501 G

each arm has a limited range of compatibility with the cartridges to be used depending on compliance