You might want to read the FAQ, under Map Design Issues. Remember to always use Distance snap.
I suggest you use Grid Level 3, located in the View menu under Grid Level from now on, it makes things a lot neater.
You'll need more difficulties than this, but I'm sure you know that.
Your slider speed seems really slow compared to the spacing.
Aren't you going to use Eph's timing?
01:00:072 - I would map through this break, personally.Done.
Really, I can't say anything more until you have a good look. If you want to catch me in game I'll give you a couple of hints and tips.