So, this was a god run... that I messed up. I managed to get the best possible Brennan's Folly cutscene skip and clear the cove below (getting that much air happens only once in a blue moon) and I decide to brain freeze at the next puzzle; at the only puzzle I have to solve in this game and lost 10 seconds to it..

My Prologue skip wasn't first try (3 seconds time loss), I botched the puzzle (10 seconds) and finally I get a little bit too much air on the Epilogue skip (unknown time loss). If I roughly add everything up this should be around a 20 seconds time loss. The only problem is, it's going to be super tough to beat this time without grinding A LOT to get first tries and get enough air on every single jump. Being able to clear the cove and get back to the beach below with Brennan's Folly cutscene skip happens quite rarely. The setup is known but results are inconsistent.