Be sure to so very carefully. I've broken one fastener in about 1/2 of my Gardmaster albums. :( It takes more force to open them then I would have thought myself.
If you are interested in making new nickel pages, I might be able to help you out. I made Word documents that match the style and measurements of the Gardmaster sheets. I don't include the high/low 77's in my albums just yet, but you could easily modify my documents.
Let me know.