Pete Riggle Crossover for Altec VOTT A5, A7

There is a pair of Pete Riggle's Hiraga-inspired crossovers for  Altec A5, A7, and other similar 2-way speakers.
They are 2-nd order (12 dB) 8 Ohms version with a crossover point at 580 Hz.
Peter is using NOS oil-filled capacitors
  "I use Pete Riggle Personally Selected Crossover Capacitors. These are new old stock oil filled capacitors with a construction that I know to give superlative sound. It is quite a challenge to find these capacitors in sufficient quantity and at affordable costs. The quality of the capacitors largely controls the quality of the crossover circuit. I have never heard a metalized mylar capacitor do a good job in a loudspeaker crossover application. The problem with the original Altec crossovers is largely attributable to use of metalized mylar capacitors. The result is what I would call a grainy sound.  In general it can be said that Altec Lansing speakers are delightful when used with high performance crossovers."
  " Original Altec crossovers are fitted with inductors having fine wire diameter and a closed silicon steel magnetic circuit. This gives me concern for operation of the silicon steel at high flux levels, which could conceivably result in distortion. That said, I have not measured or listened to Altec inductors in comparison with more conventional air core inductors or steel core inductors with open magnetic circuits

To get tonal purity in the woofer circuit, and low electrical resistance for good woofer electrodynamic damping, I use ERSE SuperQ inductors which have grain-oriented silicon steel laminated cores in a non-closed magnetic circuit configuration. To get purity in the high frequency circuit I use air core inductors. The resistance of  high frequency circuit inductors is not particularly important, because it does not affect tweeter damping and slowly comes into play far away from the crossover frequency, at a frequency where the tweeter output is more than 20 dB down."
These particular pair sports an upgraded wooden cabinets ($250) and Dave Slagle's 20 dB (1 dB steps) speakerformers ($350) in lieu of the standard L-Pads.
The crossovers are essentially brand-new and only been used for a few hours.
They a second pair of x-overs I use in my system, so I decided to keep my original pair.
Please read reviews on Pete Riggle's crossovers, that are universally positive.