I would up her temps to 90 on the hot side and feed 20% every two weeks. This may sound strange but it worked for my 2010 rescue who weighed 225g at 1.5 years of age. I was advised to do this by someone who's been in the business for 30+ years, and was basically told that my rescue may have an over stimulated metabolism for some reason so feeding frequently may be whats causing her not to gain at relatively normal rate. As of now my lil dinker rescue is 800g and is still on the two week schedule. Not sure if thats the actual science behind it or what but it has worked for me..