Here's another question along the same lines, Do you need the cts, gns, and pta mods or not? Can you substitute the CWS 15 mod for the original truck mod or NXS15 for the original Busch mod? Some say you don't need them at all. Just wondering.
I would recommend that you install all of the "original" mods (i.e. gns, cts, iroc, pta, and a few others I can't remember right now) because all of those have certain add-ons and patches that are important. But once those have been installed, you can remove them from your series folder and only use the mods you want or need.
This is one of the reasons I have 6 individual installations of NR2003 on my PC. FYI, here is how I have them:
1. NASCAR Top Tier - has all of the current and updated tracks that these series run on. Gen6, NXS15, CWS15, DMRNXS16 and ARCA mod.
2. NASCAR Home Tracks - has all of my short track mods and tracks that they run on. Whelen, LMPv2, K&N (Gen6 w/ gns physics), GNS_CTS (for my Busch North 2001 cars)
3. Winston Years - has all of the tracks and mods that ran during the 1980s-2007 (also includes the Nextel years and tracks). Cup80s, Cup90s, original GNS, original CTS, Cup2000 mods.
4. NASCAR Legends - has all of the mods and tracks from the 1960s - 1970's. GN69st, GN70ss, GN63_CTS, SNSC70
5. Road Racing - has all of the road racing mods and tracks. ASA90_CTS (for Highbank's TransAm sets), DW12, PTA, RDGTP, SNSC70 (more Highbank's TransAm cars), TPTCC2 mods.
6. Dirt - Has all of the Dirt track mods and tracks.
Doing it this way, I have all of the mods and the tracks they mostly run at all organized together in each install. Makes it easy and fun without having to swap out mods and tracks all of the time.
