I’m not sure what you expect to do, but if you own an ISL-450 already, then my guess is you will see no difference. I have had my Anthem up and down the Rockies of Colorado and the Sierras 7% 6 mile grades and have been happy. The Cummins interacts beautifully with the Allison. You won’t climb a 7% grade at 60 mph.... you might be in 4th and traveling 45-50.
If you look at my signature line, you will see I just bought a 2019 Cornerstone with a ISX 601. However, the extra 151 horses had NOTHING to do with my interest in the Cornerstone.... my 450 Anthem had all the horses I needed
You😍’ll be fine!
Gary
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Gary and Dee, Zowie and Bowie (traveling cat sibs)
2019 Cornerstone 45B, X15-605hp, Imperial, Spartan K3,
2013 Honda CR-V toad, Demco Excali-Bar II,
Demco Baseplate, Demco Toad Light system, 73 de W5FI
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