Like the title says I just topped my plants at 1 month old. I did it this morning and am ready to start flowering. Can I move them straight to flower or do I need to let them veg for a couple days after the surgery.
wait seven days. the plant needs to recover so you don't get a lag in growth. in seven days, new tips will have started to grow, and when you flower, they'll be new bud sites. if you flower now, don't count on the top doing much.
if you top and go from mh to hps there is a massive sunleaf explosion, this produces alot of extra energy, as long as your roots have the power to push up 4 new heads i go to flower these heads will stretch right out above the main canopy.