Would strongly recommend against any oral stacking unless you have aggressive lipid and hepatic management in place. This would likely include a statin, Zetia, and injectable glutathione. It's really not even worthy of discussion unless you are a powerlifter / strength athlete peaking for a meet, or a competitive bodybuilder in the final weeks of show prep. Even then, you could likely get away with just winstrol with your tren and mast.
If you happen to be a genetic outlier where the orals don't cause extreme liver stress, that would change things a bit but you need to be sure of that. On a recent Pod Sas Heirati said that he runs 4 orals at the same time for several weeks during prep and has never had issues with his liver. Not something you want to try at home I dont think. Orals are so seductive, and believe me I'd love nothing more than to run anavar daily for the entire year, but it's just really unsafe and adding so much extra stress. If you are of the mindset that HDL is not relevant when your LDL is very low, again that might change your decision-making process. You can (I have done this myself) run things that crush lipids (such as tren, anavar, mast, etc. all at the same time) and have your LDL very low (mine was 33) using the abovementioned lipid lowering drugs. But for the vast majority of users, nothing will save the HDL from going to single digits when the orals are ramped up.
