Eh, I still suggest Swiftblade casting. First of all, it's much softer entry, losing CLs at 1 and 4 instead of 1 and 3, and losing an entire CL less by 7 (1, 4, 7 vs. 1, 3, 5, 7). I have seen 0 playable half progressions, no matter how awesome the abilities. Swiftblade is playable due to the incredible abilities and decent progression with the final hit coming only on level 10. I think that road is definitely better for all gish classes (heck, you could eliminate the final hit as an anomaly/bonus for sticking through all the way).