I would transplant her into a much smaller pot, eh? When seedlings first go into dirt the plant expends most of its energy building a rootball large enough to support the plant. The plant will continue this mostly below-grade growth until the roots reach the inside of the pot. Then the plant knows to switch energy use into growing greenery. If she was in a 6-8 oz. cup she would have roots reaching the inside of the cup in 2-3 weeks. Your set-up will add weeks to your veg time as she grows more roots than she needs. Once the above-ground growth starts you are in true veg mode and the plant will soon be growing an inch + daily. .
So, I'd TP into a small cup and leave her there until the widest fans are 100-150% as wide as the mouth of the cup. Then you can think about TPing into an intermediate pot. I use 7 x 7 inch berry pots for most of the rest of veg mode then TP again into the 3-gallon finishing pots.
Transplanting shock is largely non-existent after you become familiar and comfortable with the process.
Good luck, BigSteve.
