First of all I really do appreciate the work and effort you spent on reviewing my letter of recommendation. If it's not too much of a hassle for you, I'd like to go through the letter step by step with you. Since the program I'm applying for is very very important to me.
I'm going to adapt your changes tomorrow and would submit it to the thread we're in right now.
Furthermore I'd like to get your opinion about the general idea of the letter, what you would add, what you would shorten in order to optimize it.
Thank you for your help in advance