RAD140 + LGD4033, bad idea?

Hey guys,
First cycle guy here.
I’m 41, male and maintaining is getting harder… Nevermind gaining.

I want to stack rad140 and LGD4033 but I’m a bit hesitant.
Cycle duration and dosage vary depending who you ask. PCT too.
I’m not looking for a single source of authority but I’ll take any guidance you guys can offer though

Thanks in advance