What made you drop out of Actuarial Studies?
Yeah I heard that economics/finance is the second most popular option, with accounting/finance being most popular. But there wouldn't be much point doing an Actuarial major if you weren't going for all ayour part 1 exemptions.
Personally I found the material pretty boring. The maths was okay, but the theory was mind-numbingly dry. Having looked at the 2nd year Actuarial subjects, my opinion didn't change much. Economics and Finance are pretty interesting to me, they sort of give that balance of theory and application whilst still having the strong quantitative component.
Also, with the small number of actuarial graduate spots, I figured that I shouldn't put myself through all the trouble of an Actuarial major(arguably the hardest major) when a Economics/Finance major potentially opens many more doors in the financial services industry.
The people I meet doing double majors with Actuarial Studies are mainly Actuarial/Finance majors. But you're right, you won't be getting Part I exemptions at the university and would need to sit external exams if you want the full Part I's.