Mixed T5 Bulbs?

So as of right now my girls are growing great (aside from a little nutes burn) I was wondering though I just got some 55w t5 2700k tubes in the mail. Right now i have 2 55w T5's with 6700k and 5,500 lumen each and like 4 CFL's 6700k 1,600 lumen each. Should i replace 1 of the t5 tubes with the 2700k 55w T5 tube that emits 4,800 lumen or just wait for flower to switch it all around. Heard a mixed spectrum helps in veg but not really when it comes to CFL's... Thanks for the help! oh and the plants are about 2 weeks old.

I mean they are growing great just wondering if it would benefit at all

no point in mixing them in veg . use the 6500k more bright . and in flower. first 2 weeks use the 6500k bulb to stop stretch then switch to the 2700k until the last 2 weeks of harvest pop in the 10000 k bulbs to get more crystals . I have done this in the past . this is a great way to get top notch product. you can do a lot of good things with t5 bulbs. and pull a good yield . well fare yield .

you should.....upgrade to HID. lol