My Kish is straight gauge and I’d say they were decent, but then it is a city bike. So was spec’d for robustness.
The weight benefits for titanium are less for butted tubes than they are for steel. There are undoubtedly plain gauge titanium frames out there, but most use butted tubes.
@Brommers started
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My Kish is straight gauge and I’d say they were decent, but then it is a city bike. So was spec’d for robustness.