I just got my guiche last week and so far so good. Three days in however it came out. One ball unscrewed so it was out for several hours before I realized it. I slipped an older ring in and went to the piercer to have the 8 gauge barbell replaced. All is good and I'm sort of enjoying it. It takes a little getting used to but I'm all good.
He told me i should be ready in 8 weeks. 4G will be it. A hafada will happen when summer is over as there is not enough healing time before swimming in lakes in the summer.
I'm at an 8 gauge now and think 4 will be my limit as well. Where is yours placed? Mine is about center between the bottom of my balls and my hole. You can see it when I lay on my back.
I never thought about a hafada but I am considering another guiche, but vertical. Or another horizontal but right below my balls (I guess it would be covered whenever I sit).
Mine is mid way between my balls and hole, it is far enough back that I can wear a thick c0ckring. My hafada will be a scrotal. I like to wear a ball stretcher, so when wearing a ball stretcher, it will be at a center point of the what is hanging out of the stretcher.



