Thanks 300six, I do live in Ontario...mine looks similar but I'll have to get some pics up to compare. Mine has no signs of mushrooming but I bet it wasent used very hard judging by its good shape
Ryan
Try running a file across the top of the poll. If it won't 'bite' (ie it 'skates' instead) then the steel is hard. There are varying degrees of hardness (and I'm no metallurgist) and it may well be that whoever makes these took that into account. A tool that chips has a much higher potential of causing injury through flying fragments than one that is soft enough not to chip, but still made hard enough to tolerate a lot of abuse.