Starter7777,
The study showed 30 minutes and that’s what I was going by. I’m assuming, but don’t know of course, they would have tested the heating time and over 30 minutes might not have changed results? I don’t want to heat for so long that it is just wasted time, unless of course even more time would be better. Without evidence showing even more would be better I would prefer to use the 30 minute guideline. As far as keeping the heat lamp on the entire time, instead of allowing a cool down while the hanger is attached, I suppose the heat could be left on the entire time and then allow the cool down during traction wrapping. I like the idea of heating part of the hanging session and then starting the cool down while the hanger has it in a locked stable condition, but it may not make any difference. I’m new to hanging and trying to figure all this out well so I make the best choices. Less heating time might not provide a loosening of structure as much as 30 minutes and the study might have reflected this. Take anything I say at this stage with salt.
Edit: I now realise that Andrew said the study said extended time and then Andrew mentioned perhaps 30 minutes. Still, 30 minutes sounds good to me.