inkkognito
<font color=green>I shall call him Mini-Me<br><fon
- Joined
- Nov 22, 1999
- Messages
- 14,450
I'm not an engineer, but I know that the Rockit valleys with its current cars and suspect that adding different trains could easily increase the problem. Brake runs might have to be adjusted too for trains that are larger/heavier. Those are just two things that come to mind quickly but I suspect there are a lot more considerations (force of heavier trains on other parts of the track and possibly the lift, etc.).