Ive messaged Tim Sundles of Buffalo Bore on this very subject and he informed me that the 375 and 38/55 has an performance edge ober the 35rem no question.

Some may claim theres no components for the 375 but thats really not the case. Theres enough 38/55 around and you can form cases oit of 30-30 win. Theres plenty of cast for 375 and 38/55. If you handload the 375 is the way to fly.