Gaining weight fast enough?

[JellyBean]

According to our best guess, Bean will be one year old on October 22nd

Maybe his original birthdate is incorrect? He came from a facility that had dozens to choose from, and mistakes can happen.

More important than his age, is health.
Does his growth pattern look healthy?

We brought him home on January 22nd 2016

January 30th: 28g and approx 20 inches (14 wks old?)
April 13th: 35g and 20 inches (25 wks old?)
September 11th: 70g and 25 inches (46 wks old?)

We started feeding pinky mice every 5-7 days.
Switched to peach fuzzy mice once a week

The past 2 feeding we upped to two peach fuzzy mice every 7-10 days (since we have them)

Plan is to switch to either fuzzies or hoppers. (Open to suggestions)

He is extremely friendly, never stressed, and has a beautiful sheen.
We only want the best for him. Let the opinions fly! LOL