1) Currently, I have a total of 513 earned merits (I guess earned since 1/24/18), so does that mean that I can cast 51 regular votes and 2 super votes ?  (assuming that each additional vote is earned after the threshold of 10 and 250)?  

2) You seem to assert that I can only cast those votes by making a custom portion of the trust list (perhaps keeping default trust in there, too?)?

3) So far, in the past, few hours, I have only made a custom list that includes 11 members, but if I continue to add to my custom trust list, then each of them will count as a vote until I reach 51 members?  

4) If I make a custom list that includes more than 51 members, then only the first 51 would be counted as votes, or how does that work?

5) How about the 2 supervotes?  How do I label or distinguish the supervotes, if I am understanding this correctly from theymos mentioning the number of votes that each member gets?  

6) Can I change my votes with the passage of time at any time that I want?  Presumably my earned merits will continue to increase and allow me to add more votes with the passage of time?  (I assume that some of the vote criteria might change with the passage of time, too, but that seems to be another set of questions for another day).

~the system tries to distribute the votes such that the greatest number of people would be included in DT1 at the end. If there's still contention (or if my algorithm behaves sub-optimally), then it's chosen randomly among the remaining options. But this is a bit rare: if DT1 was constructed now, no randomness would be involved, since all contention would be resolvable without it.

Dammit, you're right. Now I need to have a third example list to make it work.
Shame on you!