I'll probably get a lot of comments on this but honestly I'd go straight pinning test only cycle. Prohormones have no comparison with AAS. I got 3x the gains in both strength and size, kept majority of it (as opposed to prohormones), which is probably due to cycle length. Keep in mind you'll get more sides. I didn't get chest hair growth off prohormones like I did aas, I didn't get acne off prohormones like I did aas, and I got more hair loss from aas then prohormones. Shutdown felt the same but I'm sure it was worse off aas. However I went with tamoxifen with aas and otc pct with prohormones.
To me if you're gonna mess with your hpta, might as well go with tried and true, there's a reason test is king and dr's prescribe it. When I was on prohormones guys in the gym would say you're getting big aren't you. When you're on roids, everyone knows. You get huge. 20+ lbs gains easy 1st cycle. Strength is unreal you need to hold back so your tendons can catch up. I remember bench press would go up 15-20 lbs a week for reps once it starts kicking in.
I regret every prohormone cycle I did. I never regret the test cycle I did.