Sorry about the mini strop there MJ. It was so frustrating.
I decided to do a nice clean install on Steam then checked the game integrity, which may have re-acquired some vanilla game files.
Anyway...it's perfect, beautiful, a work of art and very long overdue act of justice to one of the world's most fascinating racecourses.
Thank you.
I don't have the grandstand, but I know I can sort it out easily enough. When I've got tired of running through several hundred Arcs.

Has anyone been able to start a new UK jumps only schedule using the latest patch? I'm still having the same problem as the previous version.

An update to my local circuits package for the US schedule and some fixes.

I added Ocala Training Center course folder because the Florida circuit will need it. I thought Start It had it. I updated the _courses file to reflect exactly what is on the Start It _course file. The tracks are in alphabetical order and I removed all the rinky dink odd tracks I had on it from my SO6 mod. You should probably restart a new game with this download if you are using any of the previous downloads. The rinky dink tracks will crash the game if you go to view a race at any of them because I didn't include their course folders in the download. I had rushed the mod out to fulfill a request. I apologize.

Some new circuits added...

Louisiana - The Louisiana schedule features all the graded races from the US, the premier group races from all the nationalities and the ungraded stakes races from Fair Grounds, Louisiana Downs, Delta Downs, Evangeline Downs and Sam Houston.

Midwest ~ South Region - The Midwest ~ South Region schedule features all the graded races from the US, the premier group races from all the nationalities and the ungraded stakes races from Oaklawn, Remington Park, Fair Meadows, Fonner Park, Lone Star Park, Retama Park, Sam Houston, Prairie Meadows and Will Rogers Downs.

Midwest ~ North Region - The Midwest ~ South Region schedule features all the graded races from the US, the premier group races from all the nationalities and the ungraded stakes races from Arlington Park, Hawthorne, Woodbine, Canterbury Park, Fairmount Park, Fonner Park, Indiana Grand and Prairie Meadows.

Southwest - The Southwest schedule features all the graded races from the US, the premier group races from all the nationalities and the ungraded stakes races from Turf Paradise, Albuquerque, Arapahoe Park, Ruidoso Downs, Sunland Park, Sun Ray Park, Zia Park and Los Alamitos.

Circuits included so far...

USA
Maryland
New York
California
Kentucky
Florida
Louisiana
Midwest South
Midwest North
Southwest

Instructions - Unzip download. Inside the Sirius 1.03 folder are the relevant folders. Copy and paste the SiriusMod folders to ~ Program Files (x86) > Starters Orders 7 > mods.

Copy and paste the three course folders Gold Coast and Riccarton and Ocala Training Center to ~ Program Files (x86) > Starters Orders 7 > 3D > courses.

Just a reminder you'll need to use the Start It mod for this to work.

Edit - Updated download link to latest update 5/31/19

https://www.mediafire.com/file/d3ctcl6ky83b0t8/Sirius11.zip/file

You could try mine. It's been a while since I've visited this post of mine. Hopefully it works okay.

I have no lag and I'm running it on a potato. All you need is the courses.

Has anyone else experienced a crash issue watching gallops? Trying to get started with this mod and the game crashes for me when I hit the binoculars. Can view actual races just fine. Gallops work in vanilla game too. I tried in two different games to make sure it wasn't an odd mistake and in both games get the same crash. U.S. game, no legends, normal difficulty. Thanks for any help!

If I play USA vanilla no lag on the skip option. If I play startit lots of lag. I also know 1 other with the same issue that streams on youtube. How are you playing with no skip lag? As to your mod it does say you need the startit mod that is why I didn't try it. I will give it a try now.

I got your mod working and nice to be able to play the USA without skip lag. It also loads up a lot faster in about 2 minutes.

Question: Do I need your 3-course files or can I use the ones from startit? Can I only install your USA mod if that is the only one I'm going to use? Your post doesn't say what the USA mod includes. Does it contain all your other mods in one?

For a US game you'll need to add the Ocala track folder. The other two are AUS and NZ tracks. Start It has those in it.

You can put all the various region folders into your mod folder or if you don't feel like cluttering up your mod folder you can just put in one region folder at a time.

The US folder has all the graded stakes from the US and Canada plus the biggest group races from every country in the game.