These are great changes and will hopefully help to keep the equilibrium of the TSU account balanced. For the trail I would suggest a system that benefits all trailers by letting the TSU trail follow everyone else, rather than the other way around. This could be achieved with a new account that does not holds much SP but initaites the trail while the TSU account votes last. With Steem Auto this could be achieved easily by unfollowing the trail and refollowing the trail with the TSU account about once per week or so. That way, all new followers will benefit from the massive whale upvotes and people would earn MASSIVE curation rewards. This would incentivize more people to vote with higher weight on the tribe posts. There would be even people from outside the tribe who would use this benefit to gain high curation rewards. I have tested something like this efficiently with the Utopian 1UP system and it increased my curation rewards to over 250% to what I had earned before.

Self-upvoted for visibility.