I think you made the right decision starting on the
statin. 275
is too high irregardless of the HDL, LDL, ratio, etc.
A study was done on 2 groups of patients one with high HDL, the other low HDL and they had the same degree of coronary disease. The current metric seems to be getting the total <150 and the LDL < 80-100. Don't worry about the HDL, just focus on the total and LDL.