Since I have learned a lot here and in other places from other players, I want to share a small thing too. It is always nice to try and find your own easy path for saw jumps. This set-up is already well known and there are other video's out there (if someone knows the original creator, please let me know and I will link that video here... I link to the oldest video of this dungeon I found). This post is just to show the path that I found to be easy to replicate.
From the point where you are waiting, you can spam tap the screen going up and bouncing back from the right wall. My experience is that hitting the ceiling in the beginning is an easy way to get on this path when starting from the right, as in this and other set-ups. Please let me know what you think!