I am looking for further ideas for SSTOs starting with small stuff. This one got to 75km orbit with 800 dv remaining by launching with 15 degree angle of attack. I cannot find a whole lot of room for improvement and I was looking for input.
Craft file: https://drive.google.com/file/d/0B8SMEYvaQylCWXEzY1lXYVFtLVU/view?usp=sharing