Not to sound like a dick, but you shouldn't use steroids "just to see how it goes". It's when you've hit a wall in your genetic limitation or gains have slowed dramatically and adjusting diet/training doesn't work.Not fussed about weight or strength, then why do you want to use anavar?
Also you have to post your stats otherwise no one will help you, but just in case you're going to do it anyways, YES YOU NEED A PCT, whoever tells you otherwise has never taken var before, it will suppress you quite noticably. While 40mg is not that high of a dose it will still suppress you.
Judging on how you structured your post I dont think you should be taking any performance enhancing drugs at this time