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You should because that was meant to be personal. The good things with alu extrusion is that it's really cheap and the result fairly similar every time. That still doesn't make it better than carbon for every use and as a engineer you should probably know that.
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I started this whole thread because I really wanted some useful info (available at first page, without mast measurement data though, before we went to sidetrack) and let people know that they should be careful when doing their decision (at least ask weight before ordering). Fact is that we got fat spars and most likely someone else will too.

I really believe that if someone would have posted something like this little bit over a year ago it would have helped me. Only way of not having these discussion is to have real measurement data posted somewhere, then people can directly compare what they got to others.