i do a very similar diet. Original HPW with wombaroo. I just dont put in the calcium, I asked around and was told this did not need more calcium since the OHPW does not call for it. we have many gliders on this diet, we have had one death to a glider we believe was older when we got her but don't have an exact age. she moved much slower then the other gliders from day one. we had her for a year.
I put in a veggie/fruit mix from the critterlove web page, about 3 fruits and 4 veggies and some mix of leafs. I think 24 grams per glider. and OHPW is 1 table spoon for 2 gliders.
Ours will eat up most of veggies and lots of ohpw. some days more some days less. they all seem happy and healthy, lots of wheel and cage running at night.
well heck, i miss read. our recipe calls for 1/4 cup Wombaroo. NOT 1/2 cup, 1/2 is only for pregnant females.