Pros:
The Central layout was the original course at Spring Lake Park. When new holes were added, it was replaced by the East and West courses, but the signs remained. But despite sharing all 18 holes identically with the other courses and having nothing unique to itself, there are some advantages to the Central layout.
First, it's very beginner-friendly. You never enter the woods, since the new holes were added in the woods on either side of the park. The signs are consistent (unfortunately), and the tees are all in good shape. You're never far from the main parking lot. There are also a few long holes, including one par 4. These aspects of the layout are really the only reason I considered giving this more than a 0.0.
Using the holes that are shared with West, Central emphasizes different ways to get to the basket, while avoiding any thick brush, and they are somewhat complimented by holes 16 and 17 on this layout (borrowed from East) which have one guardian tree in front of the pin.
Because East and West have some crossing fairways, I would guess that tournaments that are held here would use the Central layout, since it is overall safer and easier to navigate. But maybe having people play Central is actually a con...
Cons:
In case it wasn't clear already, every single hole on this layout is shared with one of the holes from East or West. There is absolutely nothing unique on this course that you wouldn't find on one of the actual courses. Everything good about this course can be said as a pro for one of the other courses. For some reason, the signs for Central are still the most prominently featured, causing confusion for newer players, encouraging players to play a layout that will bump people into each other, and quite frankly, play a worse layout overall.
This "course" combines not the best, but the worst of the East and West courses. There are several open holes (holes 13-17 on this layout) that are shared with East, which are mostly pretty boring, and all the safety hazards of both East and West (crossing walking paths several times). As a result, these 18 holes start to feel a little boring, and you may be looking longingly towards the newer holes in the woods. The fact that there are no alternate tees or pins shows up worst here, since there's less going on in these holes than the wooded holes.
The layout and navigation issues aren't any better with this set of holes. The walk from hole 14 to 15 is very odd, since there are weird issues with the East course going on at the same time. The tee signs help you out, but once the Central and West courses diverge after hole 4, you may be a bit confused.
Other Thoughts:
Judging by past reviews, it looks like a lot of work has been put in here to keep this course in good condition, and it appears as though that will continue into the future. Given the 36 decent to good holes that are here, I'm glad the park, or rather the Disc Golf portion of the park, didn't fall into complete disrepair. Don't get me wrong by my rating - I'm really glad this course existed, but it was a stepping stone to the two courses that are on site now.
If you want to play on a real course, just play the East and West layouts; they're both good courses that don't deserve to be overshadowed by an old layout. I've reviewed both of those already.
One last time, to anyone who may be taking care of or putting money into this course: PLEASE remove the signs for the Central layout and replace them with proper signs for the course the holes are on.