Patch - I am in a similar situation to you.
I take medication for high blood pressure (have done for decades) and statins.
I drink regularly - but not to excess. I think it is well known that a glass of red wine is good for your health.
I also like to be alcohol free for a couple of weeks at a time every now and again, and have a couple of alcohol free days per week - but like you, I find that if I have a small glass of wine with my meal, it keeps the bg down, doesn't increase bp - and trigs are OK too.
It might explain why my HbA1c readings are lower in January (following a merry month which includes birthdays, wedding aniversary, Christmas and New Year's Eve, when I have put on a few pounds) - than in July, when although at my lightest (pre holiday weight loss!) I haven't been drinking much (again pre holiday on the wagon)