Thinking about it, I tend to mostly agree with RCDB’s logic on this. RCDB seems to be quite reticent to consider retracks as new credits, and I’ve noticed that I tend to agree with their assessment, for the most part.
I would not consider like-for-like retracks (such as Nemesis, Hulk and Colossos) new credits.
I would not consider retracks with slightly altered profiling (such as CanCan Coaster, Python and Shaman) new credits if the basic layout remains mostly the same, even where the new track is built by a different manufacturer (Python and Shaman, for instance, were originally built by Vekoma but retracked by CSM).
I also would not consider Lightning Rod to have become a new credit when it got retracked and changed to IBox Track rather than Topper Track in many places.
The only instance where I notably disagree with RCDB is something like Phantom’s Revenge. RCDB classes Steel Phantom and Phantom’s Revenge as the same credit, but I’d argue that the Phantom’s Revenge conversion turned it into a totally different coaster. The only bits reused from Steel Phantom were the lift hill, brake run and station track, and the rest of the ride has a totally different layout built by Morgan. I’d argue that that is more similar to an RMC conversion than a retrack, thus considering Phantom’s Revenge a new Morgan hyper credit that opened in 2001, yet RCDB classes Phantom’s Revenge as an Arrow looper that opened in 1991 and simply had a heavy modification by Morgan in 2001.
I would not consider a relocation of the same ride to be a new credit, but I do consider clones of the same layout to be separate credits.
It’s all very complicated…