I also have two plants in one 5 gallon bucket. I was in about the same position as you , and didnt want to pull one in fear of effecting the other since the roots are likely a tangle... I have been LST'ing them so that one doesnt overcrowd the other, so far so good. I veg'd them for 4 weeks and now they are 8 days into 12/12, no definite sex yet, but soon i think.

Only issue ive found so far with 2 in 1 is that they can drink the bucket dry pretty quickly.:rastasmoke: