Campagnolo Record 8 Speed Titanium Issues

I wouldn't be too concerned about running a 9-speed chain on an 8-speed set up. It's a bit like running an 8-speed chain on an older 5-speed setup which generally works fine.

After trying to run an 8 speed chain on a 9 speed block (with 9sp shifters and mech) the other day in work I stand by my statement that I'd give it a miss. That was Shimano I was trying to do it with but it just wouldn't run nice. It was alright on the bigger cogs but on the smaller bit of the cassette it was horrid.