Junior jetspeed skate help

[cygnusx1 0]

My daughter has junior ft4s which are too small. Our lhs does not have the ft6 pros in stock (the ft4 has been eliminated). The ft680s appear to be a much cheaper build that the ft4s she has. Are these just plastic? They are not the same build as the ft 680 senior boots and appear to be the same as the 670s except for the tendon guard and a few other minor details. Are these similar build quality as Bauer x4s or m4s? She really liked her ft4s, I’m a bit hesitant to go down to the 680s, we could order the ft6 pros too.

 

thanks for any info