thanks everyone.
Will: I sent an email to aldo earlier this week. No reply yet.
Stacy: I have been on an exhausting search for cold-rolled medium/high carbon steel square, bar, and hex for the past 6 weeks. I've found plenty of people who list it on their websites, but the only ones who have it (and it's square-only) are MSC, McMaster Carr, and Philadelphia Steel Company. No hex. Plenty of precision ground, plenty of 1018, in any shape I want, but no high carbon. Metric Metals has everything as well. If you know for a fact of one place that has high carbon (say 1075 +) in bar form, please let me know! (Sorry, I did say "10XX" in my original post; I assumed that would be interpreted to mean 1050 or better).
I don't want sheared b/c of the twisting. I have access to a shear; I'll buy a 48" x 18" piece from McMaster Carr and shear it myself, if that is all I can find.
S&S: unless I am mistaken, the stuff from Admiral is sheared from sheet/plate, according to the fine print. How was the twist on yours? What exactly did you order?
thanks again!