Since it is guest play and 14U/16U aren't really that much different (same rules) I'd have her guest with the team you think you'll get more PT this week especially if it will include circle time. The only caveat is if the 16U team is one she is considering in the spring, guest with them for sure.I just received 2 messages wanting to know if dd can guest play for them at the Top Gun Winter Nationals, one is a 14u team(in our area she still can play until Jan 1st), the other team is a 16u team. I am in debate about which team or neither and let her continue to practice and getting ready for 16u.
And there is no reason she can't continue to practice.