Just retried it over the chrono. Its averaging 9.5ftlbs with Hobby but only 8.6ftlbs with Superdome. I really need to get round to giving it a strip and lube. I suspect a lube problem because in my string of 12 shots with Hobbies its first shot was 618 followed by a gradual decent to 597fps. There was no dieselling or smoke at all.

However whilst I had the stock off I noticed that the spring guide appears to be a synthetic material! I was under the impression that HW's were fitted with those horrible rolled steel ones. Can anyone enlighten me.