Which new track master set works best with the old track master trains?

Hello,
i have a old track master set with a old Thomas and a old Henry, and I need find out which track master revolution set works best with the old engines. So any sugesstions, really useful engines?

[Ucwepn]

ones without giant hills

ones without giant hills

What happens when the old track master engines try to climb up tall and steep hills?

[Ucwepn]

they can't reliably climb the hills.

they can't reliably climb the hills.

Thank you for the really useful answers I'll feature you on my Thomas wooden railway site soon

[Ucwepn]

if you repost content from here please acknowledge the source

I don't know for sure since I've never had a Trackmaster Revolution set, but the older engines wouldn't be able to climb up steep hills on the new track because they were never good on slopes without traction ridges in them, and the new track is designed to fit the new, much bigger and more spread out teeth of new Trackmaster engine wheels, not the rubber traction tires with the many tiny subtle ridges. It wouldn't be able to grip the new track in the same way a new engine can't grip old track.

Ok I'm back from my 1 and a half month break, so you guys are correct, because the old track master track and the new one has different grooves. So oh, you guys saw that Pla rail and old track master engines will take a long time to climb steep hills or they might get down and derail. Is this thing true?

can you reverse it

Maybe you can use a few railway builder bucket's and the water tower starter set