I’m no S&A expert, but I don’t really see their skills as complimentary. Different tools, not necessarily synergistic.
Fetch is a pull/stun. Use it and follow with fisticuffs to the headspace.
Stealth Strike is an initiate/escape. Use it and follow with fisticuffs to the headspace or by running to avoid their fisticuffs to your headspace.
Of course, no rule says you can’t get position in Stealth and then fire off Fetch. As for me, I’d sneak up in Stealth, drop out with boom, fisticuffs to headspace, then when they run, Fetch and more fisticuffs to headspace.

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