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I just finished some up and didn't have a problem. Where did you catch them? That might have something to do with it I brined for 36 hours (dry), lightly rinsed, left on rack for a couple hours before smoking. I did pat dry with a paper towel too. Pinks are soft so you really need to get them gutted and bled and on ice ASAP for best results. Your smoker might be too hot also.
Try glazing them before you put them out for drying. I use a white wine/brown sugar glaze that seems to lock everything in really well.