Have never used puncture-resistant or thornproof tubes. Heavy, of course. I tend towards Kevlar-belted tires, instead.
Your tires are not Schrader but your wheel rims may have larger Schrader-sized holes. Did the PB guy give you adapters to use smaller Presta valves with those rims?
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Bacchetta Giro A20, RANS V-Rex, RANS Screamer