I don't know what league you play in Modern, but with the same amount of SPS staked, the rewards in Modern are much better.
The advantage of using XBOT in Wild is that it plays for you, but you need to have a lot of SPS staked to get significant results.

Thanks for the mention, and I'll follow your results in Wild using XBOT with interest, also because it's been several months since my test in Wild and the results may be different from my test.