Evening Simmo ... Are you referring to the JJD BCHLIMB-01 item?
If you are then there is "SUPPOSED to be a slight bend in the two long arms on the limber. I have two and checked both to verify.
I didn't get out a compass but I might guess 10 degree angle? :rolleyes2:
I would not use a hair dryer since you can't direct the heat to only a tiny area to be shaped.
I build model ships that have many metal and resin parts. The hobby trick is to lay a soldering iron on a safe surface. Hold the item to be warmed about 5" or so about the tip and gently rotate for a few minutes, keeping that one point over the heated tip. For big adjustments, it is best to do the shaping over a few times, allowing the metal/resin to cool.
Good luck.
--- LaRRy