Have you considered an Anavar cycle or a SARM such as ostarine. If it’s not a long term vision to use AAS and it’s not for a sporting purpose they are options worthy of consideration.
1ml/250mg a week will do the trick. Your training just has to be hard and consistent as well as your food intake. On 500mg/week you can afford to skip some training days and not eat as much and yield the same results. Which of course is not advised but it’s just a fact of the matter when you’re taking double the amount of testosterone.
If I knew you and you asked me which, if you were lazy and inconsistent I would first say nothing then I would say 500. If you were motivated and knew your stuff I would say 250.
As for pct, yes you want to do a pct.