I would kinda similar.
I tried both, I would go for the MK677, only 1 tab per day against (at least) 3 pins ED for the GHRP.
Mk677 is great for bulking, as the hunger is out of control (more than GHRP in my experience). I remember I used to wake up in the middle of the night to smash some protein bars and pudding.
But you need to be careful about your insulin sensitivy.
For all the newbies on the forum, Darren made a thread about insulin sensitivity:
https://mtsboard.com/threads/3896-Ins...itivity-is-key
Also I think Monstro did one as well, or something related, couldn't find it