Not sure but I've had decent luck on Dunlops 616 from Cycle gear. You also need to remember that the Setup on these bikes are different than Cruisers. The Cruisers are lighter depending on model of Bike. Width is different Rim Wise. so a Touring Tire may not last with the Frame and set up the Buells have.
Usually on Sport Type Bikes Tyres for max Grip don't last more than 6'000 miles OR less depending on the Rider. I have used many brands of Tyres over 33/years. Sport Bikes get Grip/ Weight Distribution on Tyres, is different, Handling is Great, and Braking is Sufficently Good.
Cruises on Cruisers are just that, NOT much Agressive as Riders on most Cruisers, Buellers well we have A more Agressive Handling & Braking Ability so a Tyre also needs to be for the same purpose. Look up the Dunlops 616 and check out that Great Agressive Tread pattern. I've put nearly 7'500/miles on the rear of XB12R I have but have been[ easy] due to budgets.Usually I can't get that if I ride it the way I want to. Good Luck on your Hunt for the Best Tyre cause we all need that.*Jimi