I'm wearing a pair of Korkers Darkhorse boots with interchangeable soles and Boa laces. Absolutely the best pair of wading boots I've worn to date! I've had no problems with the soles coming loose.
I did happen to see with the one I found that the rubber tab that secures them to the back of the boot is broken. Regardless, I'm still surprised the sole would have come off with the way the tabs lock in. I do recall seeing a work-around if the tab breaks (as shown) so you don't have to buy all new soles. It's somewhere out there on the web!