i think you can fim secondaries but i'm not sure. maybe someone else knows for sure...?

if you already have made the decision to fim, i'd do it soon. maybe you could get 2 fims in if you're willing to wait the extra 2-3 weeks to veg it out and let it recover. i'd only do one fim at a time, but you might get away with two.

and, damn. thats a big bulb.