I've seen the Mikmar bits in more traditional types at the tack store, and they look like good bits. Beyond my price range, granted, but they do seem like quality bits.
Those funky-looking combination bits, though... I just don't see a reason for them. If the horse is evading the bit, find out why, and alleviate the pain or teach him a better way, whatever the reason for the evasion is. If the problem is a rider with poor hands, the money would be far better invested in some lessons than in a new bit. Their commercials rankle me a bit, too - all the "befores" with the riders doing everything possible to exaggerate the horse's "issues..."
Bits don't make or break horses. Riders do.
A stubborn horse walks behind you, an impatient one in front of you, but a noble companion walks beside you ~ Unknown