Finally got a chance to fit the board this evening.
First impressions... wow!
... completely different machine.
I was initially worried about clipping the card onto the 68000, but there were no problems at all. The board's socket gave a nice reassuring click when pushed down upon. It just sort of snapped into place.
I've been running it solid for about four hours and am pleased to report no problems at all.
Here's a couple of screenshots showing the device straight out of the box (haven't used ACATune as yet)..
Might be time to offload a couple of my A1200's