Here's an interesting concept. My best buddy is head tech/luthier at a local guitar shop. He recently did a refret on a Fender JP-90. The owner of the bass wanted him to put jumbos in for the first 7 or 8, then drop down to mediums up to the 14th or so and then drop down another size for the highest frets. I can't remember what frets he made the changes at, but you get the idea. It seems like a cool idea to me. You get the big, meaty frets for lower notes and the easier fingering and of the little guys up high. Have any of you had this done or heard of it? Do any manufacturers do it? Are the advantages real or just preceived? I'd like to know what y'all think. I'm having a refret done soon (for the cost of the fretwire, one of the advantages of being buddies with the tech guy!)and I'm considering this. What's the scoop?