before flowering

Just wondering if there is anything I should know or do before changing over my light iv done a boat load of reading and this is my first indoor grow. I got about a week before I do I'm going to transplant into 3 gal pots than give a week to recover than send them. Any info is good thanks

Too much too list. Do you have any specific questions?

Just a rough over view. Like is there any reason to flush? Like to flush the veg nuts out? I'm due to feed so should I just start flowering feed right away even tho it hasn't started yet? The hole 24 or 48 hours of darkness before flowering thing should I even bother? I topped a few branches a few days ago should I wait longer before switching it over? Just some general stuff

Flushing does not remove nutrients from plants, that is physically impossible. The only thing flushing accomplishes is starving plants of needed nutrients, and opinions are split on its efficacy.

Best practice is to start nutrients at 3/4 strength of the recommendation on the bottle. If they show signs of deficiency, slowly increase strength until new growth looks green and healthy and NEVER deviate from that amount unless the plants show signs of stress.

if you just topped you should wait a little while so that the structure of what will become the bud will form (or something)

How long should I wait for my tops to recover?

if you have rapid growth it shouldn't take long maybe give a couple of weeks from the topping and transplanting

Ok sounds good so let's say two weeks from now.