With Tvad's caveat about trying things in your own system in mind, I say this: Triphasers still beat out the Dakioms by a WIDE margin - in my system.
I have had Level 25 line and speaker level Triphasers in my system. I still have the speaker Triphasers in to this day. The improvents in focus, soundstage, dynamics, and overall "musicality" were second-to-none when it came to tweaks in my system. That list includes the Dakiom's, Bybee RCA Inlines (not the slipstream), and BV Audio SR-10 unit (which is a powered unit).
The only other piece that I'd rank up there with Triphasers is the Taddeo Digital Antidote II active version. It has improved almost anything digital I've had, including Sony SCD-777ES, mod'd Sony and Pioneer players, Arcam CD-73T, and many cheap players. But again, this is an active unit; their passive Antidote, at $120 delivered, may be a great deal as well. I had one of those, but it's been too long since I used it so I can't reasonably compare it to anything.
BTW, I have the Mapleshade Silver treatment, seemed to make a very subtle and slight improvement in clarity in my system. I treated my interconnects from mod'd Pioneer universal player to my integrated amp (Belles 250i). Richard, I like your thought of treating the Dakiom's; I should try that some time soon....unfortunately, I don't have the line-level Triphasers anymore to directly compare.
Thanks,
Todd - chams_uk