One of our customers has recently been in touch - they have replaced the 3" disk drive in a ZX Spectrum +3 with a DivIDE Plus interface.
In order to do this, they had to run an extension cable from the Spectrum's expansion port (it was soldered to the various tracks), leaving the expansion port available for other peripherals.
At first the divIDE Plus did not recognise the compact flash card - it was found that by shortening the cable to 5" (approx 125mm), this then allowed the interface to work correctly. It would appear that anything over this length causes too much signal loss.
