Dance review Sometimes a live performance will start slowly, then build to a punch that sneaks up on you. That wasn’t the case for Seattle contemporary dance company Whim W’Him’s latest show, “ Spring ’26 ,” which opened Friday and runs through May 16. The triple bill opened with a decisive bang, an exhilarating new work by choreographer James Gregg called “Static Bloom.” Its high energy lingered through the two quieter dances that followed. I couldn’t help thinking of a century-old poem by T.S. Eliot, “The Hollow Men,” that proclaimed the world wouldn’t end with a bang, but a whimper. There were no whimpers in the “Spring ’26” program, but the works by Rena Butler and Olivier Wevers couldn’t surpass the impact of Gregg’s “Static Bloom.” Whim W’Him, currently in its 16 th season, has earned a national reputation for commissioning and presenting nine new dances each year.…