Bent up a sides today. Did it by hand on a pipe being paranoid from breaking it yesterday. Seems Tightbond Original did not like the amount of heat or steam I had to use in bending the side.
Once I had it clamped this much I was not going to give it a chance to spring back on me. Put a wet rag on it and used an old iron to steam it down.
The Supersoft suggests letting it sit for a day after application. I am not one to argue with them. So far so good, can't wait to get the second one bent.