Hi all,<br /><br />had my jetjoe for a long time, I think had it 2004 when they first got brought to the uk. Anyway, not used it for years, it's done around 10 hrs use and I thought I'd strip it down after reading xairflyer's thread.<br /><br />question is, I notice heat erosion on the NGV, OK, expect over time I would, but how much is too much ?