As long as the inner chainring barely clears the chainstay under heavy load/flex and the chain barely clears the chainstay in the highest gear, you should have a near-optimal chainline, particularly if you have a triple chainring. Most chainline problems I have seen arise because the chainrings are too far from the centerline of the bicycle, and/or the cogset is too close to the centerline, making the large - to - large combinations run very roughly. (On most bikes, you should avoid using the extreme cross-chain combinations, anyway.)
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"Far and away the best prize that life offers is the chance to work hard at work worth doing." --Theodore Roosevelt
Capo: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger (2), S/N 42624, 42597
Carlton: 1962 Franco Suisse, S/N K7911
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1982 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069