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For pull-apart, you want the collagen connective tissue to decompose into gelatin, which is not as good a glue. As I recall, 140F is where collagen starts to fall apart, so 140+ and a good long time should get you there...
Read more here: https://www.chefsteps.com/forum/posts/collagen-conversion-what-is-the-threshold-temperature-3
For pull-apart, you want the collagen connective tissue to decompose into gelatin, which is not as good a glue. As I recall, 140F is where collagen starts to fall apart, so 140+ and a good long time should get you there...
