I'd just add a negative look-behind, and a negative look-ahead to get the "strictness" you're looking for. As in:

/(?<![0-9])PATTERN_TO_MATCH_CONSECUTIVE_DIGITS(?![0-9])/
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The disadvantage of *SKIP is that is isn't "contained". You cannot easily take a pattern with a *SKIP, and interpolate it in a larger pattern (it's like having subroutines that have 'exits' in them - they're lousy for code reuse).