It’s hard to fit the new Walker Bay Generation 525 into a narrow boat category, because this new, luxurious 17-footer offers so much: It’s a RIB, certainly, but it also can be a sport boat, a day boat, a tow boat, a runabout or even a megayacht tender. It would be fun to have the 525 just to zip around a harbor by yourself, or to take a crowd – the boat’s rated for ten passengers. A California company (located in Fairfield, about half-way between San Francisco and Sacramento), Walker Bay is known for its innovation and creative design. Indeed,…