Hi Klem - I went the cheaper route and bought the Z-grip by Evercoat and was happy with it. But then my neighbor gave me some of his leftover Rage Gold, also made by Evercoat and they were night and day. The gold spread much easier and sanded easier as well. Nothing wrong with what I bought but I could see where those with more money than time would want the gold. I will buy it the next time as well.
Good Luck