If the Artmix Adapter's PAL is for adapting the SE/30's PDS Slot to a IIci Cache Slot Card, you shouldn't need it at all to address as many SE/30 or IIsi cards as the SE/30's address map can handle.

The SE/30's PDS "Slot" is the equivalent of an extensible, pre-VESA, local bus slot on a PC. You can stick as many cards on that bus as the PC's BIOS or the Mac's ROM will allow in its memory mapping scheme. That's why you can have IIsi & SE/30 Cards that daisy-chain off each other. These are constrained only by provision for the daisy-chaining connectors, address compatibility jumper setting availability, accessible cubic within the Mac and the number of PseudoSlot addresses available in the ROM's memory mapping.

Three PseudoSlot addresses are available to the IIsi and :?: are available to the SE/30. A PAL should be unnecessary for a similar adapter if it is ONLY moving the connections around to spaces where cubic is available to max out the SE/30's PseudoSlot/PDS Card Addressing allotment . . .

. . . as would be the case under consideration, with an '030 Socket conversion for the PowerCache . . .

. . . or so I understand the situation! )