I confirmed their worst suspicions by mentioned as a half joke that 'it would also make them lighter
LOL! I saw you on sunday btw, heading past Bruntsfield on the bike.
For our month long tour, i had my mtb shoes plus a pair of merrell sandals. Problem with going for sandals/flip flops was a) when it got a bit colder up in the mountains = cold feet and b) some camp sites had bitey insects = wanting to cover up skin completely. So Mustard picked me up some cheap pumps from decathlon one night (after we'd been looking for a decathlon for about 2 weeks during the trip!), they were super light, folded up to nothing and were purple. Not the most stylish but did the job.
PS, coffee at ours soon to catch up?