if you wanted to know what tracks I'm trying to use are SProps and Battleship's abandoned rails type nodamage and want to use the damaged rails(that's why more suspension).

Hey beetlejuicehero!

I tested both railway packs and got these results:

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https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=173482196
I have no problems with the SProps rails, they work very well.
I don't really understand your problem with them.

The SProps rails have the standard PHX gauge (80 Units) even the small turn that is very tight seems good and stable for my trains.

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https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=807162936
The Battleships Abandoned Rails Pack didn't use the standard PHX gauge and is slightly too small. (79 units)

That's the reason why my trains wobble a bit on the tighter turns but the big ones are okish. That the trains start to derail sometimes in the damaged versions should be considered as normal.

And since the developer is not supporting his own addon anymore, there is nothing we can do about it. Beside that, I can't and wouldn't rework my train sliders for an track pack that didn't use the standard PHX gauge in the first place.

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And you title was a bit misleading.
"I might have figured out the issue between the trains and prop tracks"
In the first place I thought it was meant to be a bug report not a suggestion so I changed that.

think you