500mg will be enough to saturate the androgen receptors, whereas 250mg may not be. As your shut down whether it’s 250mg of 500mg then I’d say get the most out of it and do the 500mg
I've also been cruising almost all this year and for me I know that 250mg is just maintenance dose for me.
Also a double-blind, randomized study showing that increase in muscle size, strength and power were dose dependent
Testosterone dose-response relationships in healthy young men -- Bhasin et al. 281 (6): E1172 -- AJP - Endocrinology and Metabolism
Tell me what you think the benefits are of doing 250mg verses 500mg?