There has been virtually no number talk about Guardians repping T3s, which you seem to refer to above. But generally speaking, if you look at numbers in wh-space, a more relevant number tends to be the rep on key assets like Bhaalgorns, which are often faction/officer fit and can match the resists on T3 (although obviously on a fatter sig). A lot of these battles come down to triage carriers which are optimum for helping a fleet hit above its weight (and can perform extra logistic/refitting tasks as well), and so a lot of the battles revolve around capacitor issues.
Although there have been examples of 0.0/LS style logistic groups (e.g. in some of NATO's larger fleets against the Russians), generally the prevailing form of rep in most engagements in wormhole space tends to be the triage carrier.
Bookmarks