I have had the Stack in use since this period, I have occasionally taken them out of use as a Stacked Pair, and used the bottom Pair only, when returning to the Stacked Array, there is a little extra on offer of all the traits that make a 57 attractive, in my dedicated music room, the Stacked Array is the more attractive option.
Additionally, I have a Audax HD 3P Piezzo Tweeter in a Cabinet Speaker I have owned for a long time. The Upper Frequency Presentation of this Speaker is awesome and more than attractive, experiencing this really shows where the 57's can be benefitted with a sympathetic introduction of a Tweeter. If the blend could be produced to be seamless, and of the quality of the HD 3P, the 57's would be a serious contender to a vast range of Speakers.
I lean more toward Transparent as a replay from a system, which is not easy to achieve as a Valve Person but had to get the Tannoy's out on occasion to be used with Blues Music, Cabinet Colouration from the Tannoy's and the Blues are to my ears a match made in Heaven.
The Mapleshade's as a Speaker Cable are Superseded by a PC Triple C Wire Speaker Cable, which has proved to be an Upgrade to the Cabinet Speakers as well.
When back in the game, I do intend on exchanging the internal wiring within the Cabinets to PC Triple C.
Due to a Home Remodelling, I am reluctantly and slowly putting the HiFi System into storage. Temporary accommodation beckons.