sog. skip veg. clones straight to 12/12

I am on a short time scale so I need a fast grow. I will be putting my clones straight to flower. I have a couple questions about this.
1. Should I veg for a couple days or will this really not make a difference?
2. Once I switch to flower, should I use any root stimulator with my flowering formula, or should I only use that during a veg period.
3. Any recommendations for nutrients that would assist in a grow like this?

muchas gracias

i am doing something simalar last time i vegged 3 weeks and then 3 weeks into flower the plants hit the roof and took over the whole closet this time i am putting them on 17 hours on and 7 hours off for the first week which will be done tomarrow i did this just to get the rootmass up the plants have already trippled in size then im going 12/12 for the next 5 weeks it should be done for sure in that amount of time.

i think putting them straight into flower would be fine your yeild will just be less because it wont have as much energy stored