Well I went ahead and ordered a bag of 400 & 600 until someone can work out the issue with the 500.
I hope the 600 works in my feeder; otherwise I will be doing a ton of hand feeding.
I know the 400 will work and I may mix it with my GFC, and also the 600 if it works.
Will keep everyone posted, and hope to track down some 500 soon.
Thanks
