Well, this became long enough I doubt most will read it. Sorry, I even left a lot out.
Diet and exercise only change LDL 5-10% for most people (if they do it). You are already in decent shape based on those numbers, so little to no gain to be had from exercise. Preventative care is not about how you feel today, it is about how you feel 10-20 years from now.
Beyond that, giving meaningful advice on diet, or exercise takes significantly more time than an office visit, really most people need multiple visits with a dietitian and exercise coach, not cheap and not covered by insurance. For 95% of people, lifestyle modification is a euphemism for doing nothing. I see it repeated in follow ups, and their answer will still be the same empty promise. On the other hand, I have seen some people who take the meds, aggressively manage lifestyle, then in a year or two we are weaning off and stopping medications. More often then not, those are not the people who decline medication. (Edit: should say more often than not people who make lifestyle changes are not those who decline medication).
Particle size and Apolipoprotien have not been shown to alter outcomes, both are money wasting tests at this point. HDL is also pretty meaningless, medicine once though it mattered, but that simply hasn't held up under examination. The only things worth looking at are triglycerides, LDL, and lipoprotein a (LPa). LPa is complicated by a lack of good treatment options, but those are being worked on, and PCSK9 inhibitors do lower it. LPa is new enough, perhaps like particle size and HDL, it might matter less than we think, but it takes time to confirm such things. Triglycerides respond very well to lifestyle modification.
LDL of 151 is far from a scary level, but certainly puts you at elevated risk for stroke, MI, acute limb ischemia, and dementia as you age. Time under the curve (how long you live with it being high) appears to be important on risk. While clear data is not available, and US guidelines focus on 10 year risk, I strongly suspect there are significant advantages to lowering cholesterol early, but data is not available to confirm or refute that.
Historically, and as still reflected in the outdated US guidelines, we have been hesitant to treat LDL aggressively. It is really cool to see patients with near surgical disease who with aggressive LDL lowering go from 80-90% obstruction to 20%. Or the person with sever coronary artery disease that is not a candidate for intervention and has angina an max nitrates, ranolazine, beta blocker, and CCB who has angina resolve and can slowly be weaned off those medications over the course of a few years once lipids are aggressively managed. Cannot promise that in all cases, but I have personally seen it multiple times and it shows up in current evidence as well. But, I suspect holding an LDL at less than 100 and never having severe disease would give better long term outcomes than stacking a max tolerated dose of statin with a PCSK9 inhibitor years later once problems arrise.
My LDL is in the range where US Guidelines say lifestyle modification (127), I was too embarrassed to ask my PCP, but I want to start low dose rosuvastatin (5 mg daily), because frankly based on current evidence he US guidelines are out dated and my lifestyle is not going to improve further.
Most PCPs under manage lipid issues in my area, which is poor preventative care. Statins are old and cheap, anyone who thinks pharmaceutical companies are getting ritch on them lives in dream land. Now, the heart failure meds you might need if you have a heart attack, those make money (as does the initial hospital stay and procedures).
Despite the Internet loving to hate them, no scientifically credible argument against statins is available, but recycled arguments that were scientifically valid in the 80s and early 90s are hauled out like no one took the time to look onto them.
Functionally Medicine is about separating you from your money. The crap I have to clean up on people who see Functional Medicine can be pretty bad, but healthy people do good going to them (because they would do good regardless).
I check my memory frequently, I could pretend to remember everything perfectly, but I would rather double check myself, than give bad advice, it is like a pilot and a preflight checklist, any pilot worth a damn can do it by memory, but never will because it matters too much. Or, should I consider a reloader incompetent for looking at a reloading manual?