I still have UBB classic. I have 6.7.1, I think it got up to .3 as the last upgrade. I'm not sure why I didn't do the last available upgrade. I know each time they had a default of 8 graemlins per post and I wanted 15, but it was never a CP feature so I got tired of looking for the file to change it manually each time there was an upgrade. Also at some point in the upgrade process UBB classic became really server intensive in terms of resources and some host providers banned it for that reason. I had to end up going to a high volume server.

Anyway, I've used UBB classic since 1999, so I've definitely been a loyal customer. I'd guess my question is how resource heavy is threads compared to classic? I'm interested in upgrading to threads, but I'd like to know that first.