Sergio jr is not really serious about a pro bodybuilding career, he has not completed in a while and he is just on a cruising cycle and its a shame because he has the genes to be realy freaky if he went hardcore.
from a fan angle, I think it'd be badass to see Sergio Jr go "all out" and blow up 25 more pounds over the next 2 years and crush some top NPC guys.
On the other hand, as a normal dude, it's cool to see another dude accomplish a great physique but preserve his health. "All out" gear means a lot of problems in 40s and 50s. It probably makes the last 20 years on earth a lot more difficult. The stuff they used in the 70s seemed to be nothing compared to today's stuff.