Having high LDL is no problem if the cells of your organism can utilize them. For this process there are ACHA molecules (anticholesterol antibodies) in our blood to cover the LDLs, as the cholesterol parts are standing out from the lipoprotein, and without these protein antibodies they would be unusable. HDL's cholesterol parts are already inside protein cover, so they can be used directly, that's why they called good cholesterol, but as you see it has the chemically same cholesterol. So LDL is surely not "bad" until you have enough ACHA. ACHA does not need a co-factor to be attached to LDL's, they are bounding to the ß-OH-ligands.
On the other hand the LDL:HDL ratio in our organism is already about 2:1, so you only need to keep your organism to produce ACHA molecules.
It is possible, you could have an LDL of 140 and a HDL of 30 and still have a total that is normal. The formula is LDL + HDL + (TG X .2).