They are very close with the GB3 Pearl being a touch cleaner through the fronts. Rhodman Pearl is very good on the fresh mediums. GB3 Pearl shines best through transition. I honestly wouldn't be mad at a pin down Rhodman Pearl, pin up GB3 combo. I haven't thrown my Rhodman Pearl all year as my league shot is just too low volume for it, but I have a review of it in the review section if you want to look.