hellou!
well you mean 6 week old vege plant and you got feminized seeds ??
well i have one plant never topped but i have do some other things to her
and i got 4 top's and another one where is 3 tops and fourth top coming under, both are 80% sativas Purple Bud
so i only do that, i cut fwe fanleaves in the early state of grow. so it's take 2 weeks to recover, but vege will continue then normaly.
ANSWER: you can make 8-10 tops, i only have got 10 tops once and it take over 2month vege.
if you do that hole cut trick and do bushy and many tops plants you have to do big cut's at early vege time, and give good cultivation! and time to recover.. 2-4 week max more vege time but not flowering time. ( is normal..)
then i got 8 tops WW girl there too.. i do the same thing but i took more fan leaves of and give more recovering time but it's worth it!!
now they are over month old, so thc production is full loaded.. too !
1-3 weeks i start flowering.
another ww plant 3 tops and 2 purple bud's one is not pimped or fixed, and with other one i have done fwe tricks.. i belive that plant gonna bee bushy and very big, maybe one huge top but many bigs lower tops. but if this lats trick cut workin, then i think there is 4-5 tops.
but i wish you good luck dude..!