Re: thoughts on cycle
Hi n welcome KK
8 weeks is a little short for Test C to make the most of your gains tbh,10+ is better.
The only reason we used to run a pyramid cycles was to help recover coz PCT's had not yet been thought of so no need to adjust your dose imho.
So a straight 10+ weeks of Test C @ 500mg would be more beneficial.
Good you've got an AI on hand, i'd not use it unless you feel any gyno symptoms as the extra oestrogen will help max your gains if it's not causing you any sides.
Best of luck Silent Rep.