Noted! Thank you for playing!
1. This could be an interesting idea, it is a bit technical to release S and then jump.
2. There is a mechanic with the dig button where if you hold it in the air it actually brings you too the floor faster, this conflicts with jumping. ill look into this
3. The wall jump has always been silly, I will adjust accordingly.
4. This is how it used to work, there is currently a tech i refer to as the "cheese grater" where the more you move your mouse left and right the faster you can get a boost, you can do this practically instantly. I see your points though!
5. Customization is in the to do list!