DMC from what I understand is kinda tough to forecast. If anything I would aim for mid to late May. We gave it a shot last April and got skunked. We are going again this April for the Kern Fest and have high hopes, but tempered as well.
If you are planning on a Cali trip around mid April, feel free to drop me a line. firstname.lastname@example.org
We are leaving from Boulder on the 9th for about 10 days of creekin around the downieville area, trinity, Kaweah (sp?), and Kern drainages.