Yeah all that's well and fine if you're prepared to run a PCT. Since you specifically compared the TWO LGD or Ostarine, I went with the best of your suggestions. Of course you can stack up other research chems and see better results, but if your on a budget and you have to pick one of the two, go with the MK2866. But if you have the money, go with some of the other suggested stacks, but your going to have some intereference with the LGD/S4. Which is why Gemelli only suggested 10mg of LGD. That's how it has to go. Again, if you have the money to do a full stack like Gemelli suggested then go for it. If your trying to choose between LGD or Ostarine, go with the one better for fat loss and doesn't require a PCT.
And again, the suggested stacks? Have they ever delt with fat issues? If someone who was born with abs gives you a good cycle that worked great for them, I would keep in mind they have a different body type.