I think I have found someone else to help me with this test. So at this moment my question is fulfilled.

Testing with 100 SP would not really make a big difference compared to the almost 68SP I have right now. And at this moment I can easily gain 0.6 curation reward. And I didn't really put a lot of effort in it and I did not use all my upvotes to hunt curation rewards. So I'm 99% certain that if I use 100 SP I can easily gain 1+ SP per week and probably close to 2SP.

So that's basically the reason to try it with 1,000 SP.