Use MOAT/SPGP ETF as satellites to your core investment?

[Helix]

No, you increase exposure to US companies, not USD. There is even a wiki post about this.

Secondly, past performance ≠ future returns.

Thirdly, MOAT is active management, SPGP is some quality, value, momentum thing.

Portfoliovisualizer

Morningstar > Portfolio:

• MOAT
• SPGP