Flowering time :D

So ive changed my nutes and timer today to start flowering. Im using sensi bloom a and b with voodoo juice as my schedule says here........

http://www.advancednutrients.com/hydroponics/calc/mobile/

i have a 40l resevoir using hobbyist level nutes.

If i was to add a week to this schedulewhere would i do so? Would i simplyadd a week to the end i.e week 7 would be another week 6 of a, b, b-52 and overdrive or would it be more beneficial if i was to add another week to the middle like another week of a, b , big bud and b-52.

another way i think it could be beneficial would be add the extra week between week 4 and 5 using a, b, big bud, b-52 and overdrive then carry on as scheduled with b-52 and overdrve to week 7 as 8 is flush ofcourse.

as it doesnt say big bud and overdrive are to be used together in the schedule, can it be done? Should it be done?

what do you guys think?

Thanks in advance

i will add pix tomorrow to show how they are doing so far.

From what ive read so far your rite Add another week on to the end you dont want to mess with the nutes and stress the plants while you switch them to flower, so just repeat week 6 on week 7 and leave yourself a week or 2 just to flush them out