Thank you, Ladies, for your input. I really appreciate everyone's thoughts on the matter.
Mona.. I started soaking seeds the first week of November and potted them up the week after Thanksgiving. Then transplanted into the larger pot the week after Christmas. DH had went out to the compost bins on a warm day and brought me back two large tubs of compost, which I mixed with potting soil at a 3 to 1 ratio. ( 3 p. soil ) x ( 1 comp).
I won't be transplanting them into larger pots again. Next stop will be in the ground in May. Even if I move them outside the beginning of April into an unheated potting shed, that still gives them 10 more weeks of growing in the basement under lights. This is why I'm wondering about trimming them at some point.