Man of Honour
5 x 8 pull-ups is good - I struggle with them a lot. I feel your pain on added weights though - it really does make a difference just adding a few % to your body weight.
It's only on a rubbish home bar so it's not really as good as doing proper 5 * 8 anyhow. I might be trying a new gym out in March in which case I can do "big boy" pull ups again