Delta 100 and HC110

I've just moved into medium format - 6x7 - can anyone give me a kick off development time for Delta 100 in HC110, average contrast subjects? I'm planning to run film tests for my own circumstances but took a few pictures that I'd rather not lose from this roll.

Thanks

The massive development chart has never done me wrong with a starting point for testing. www.digitaltruth.com 6mins at 20c for iso 100 in hc110 dil B