CF on IDE will hit Zorro2 bus limit at 3.5Mbyte/ps and bring CPU performance penalty since it is non-DMA disk controller.
SCSI2 onboard 2060 has taller "ceiling" at 7Mbyte/ps or even more, but then it all depends on maximum sustained transfer within HDD. SCSI drives of that class had minimum sustained transfer rate of 3.2 - 3.5 Mbyte/ps.
This could be a tie...
However, you might get away with it if you get SCSI-to-IDE bridge and then add IDE-to-CF part on top of it. In that case you would benefit from best features of both 2 worlds:
- CF lower power consumption
- CF lower heat signature
- CF lower noise level
- CF higher shock resistance (transport)
- CF lower replacement costs
- SCSI interface highest speed on Amiga
- SCSI interface frees CPU from stealing cycles
