I made a simple table, and the conclusion is:

The optimal Alpha return solution is to earn 16 points daily, which corresponds to the 65536 tier.

Assumptions:

1. There are more than 7 Alpha airdrops and TGEs within 15 days (based on past data, there have been 12 in the last 15 days, so the condition is met);

2. The balance points meet 3 points/day;

3. The participation threshold for each period is 200 points;

4. The return for each period is 90u.

Under these conditions, it is calculated that only when the return for each period is greater than 120u, earning at the 131072 tier becomes the optimal solution. Even if the balance points are 2, or the return for each period is between 60-120u, the 65536 tier remains the optimal choice.

@binancezh @sisibinance