A bridge is usually just going a real low dose of anabolic androgenic steroids, to give your body a break from the high-dose steroids. Maybe a time to shoot a little HCG - human chorionic gonadotropin - to get the balls going again too.
If your just looking for a bridge, original Dermacrine would be the best way to go since it has the hormones DHEA & pregnenolone so it will help preserve your gains the best. Bridging is not really about recovery, and 4-8 weeks isn’t a long enough time to fully anyway. Derma Sustain would be the best choice for when your ready to totally come off everything, because it wont help much if your still “on”.
-Pp