Do keep in mind these DB spokes vs. straight gauge spoke discussions are more theoretical than practical in application, meaning in application it makes no difference provided all materials in the wheel are of proper design, ie rim/spoke/hub/build and of good quality. My experience from working in a bike shop as a full-time or part-timer since 1981 is that there is no real world difference between the two types of spokes as long as the builder knows what they are doing and the rims, hubs, spokes and nipples are good quality stuff.
I have personally built dozens of wheels with straight gauge spokes and have zero fatigue failures. My friend Al, builds them as a side biz and he has the same track record as myself. Zero failures.