At best i would do sports TRT (3mg per kg of Testosterone) or sports HRT (3mg per kg of total substance used eg 1.5mg test 1mg DHT like masteron, 0.5mg 19nor such as deca) with maybe 0.5mcg of clen per kg of bw, and if budget and experience allows for it, 2iu of gh 5 days on 2 days off and some insulin on training days For 8-10 weeks.
That way you are hitting multiple anabolic pathways, aswell as keeping total androgen load low, whilst getting back to supraphysiological dosing in your course.
I would then stick to 80 working sets per week total across all body parts, 1-2 reps shy of failure getting nothing less than 8 reps per execise.
You are repriming everything and allowing for improved recovery by not going to failure, but still focussing on driving reps up and overall volune without driving yourself into the ground.
You should on that be able to regain all muscle that may have been lost prior to not training, and you will get a feel for the heavy weights again.
Its what i did for the last 10 weeks between courses, i still gained muscle and strength in that time, and was able to start my course at a higher 10rm than when i finished the last 1.
Remember there are 2 major things that drive recovery, calories and miligrams. But there is 1 thing that drives growth. Volume. Volume comes from 3 places. Weight used, reps performed, sets performed. So when the number of sets are set at 80 per week, the priority needs to become reps done, and then weight used. Because you are sitting with lower mgs, you dont want to also over do caloric load too.
Depending on metabolic rate, you could be anywhere between 29-32kcal per kg body weight to support the above. If you are worried about fat gain, I would start at the 29kcal mark, and then maybe progress up by 1kcal every 2 weeks over the 8 weeks.
