I've been experimenting with different blades, and based on a recommendation from an experienced scroller, tried out the Pegas Super Skip blades.
Very impressive performance! The #7 easily handles 3/4" thick purpleheart, with no burn. It's an aggressive blade, which gives it an edge over the Flying Dutchman Polar blades, which don't burn, but cut slowly.
Haven't tried Pegas for years, but I'm glad I did. This blade is especially useful for projects such as collapsible baskets, where you cannot sand the inside rings and need a smooth, burn-free cut.