Okay, I should be able to thoroughly confuse this!!
Ralph--that split fence with the hollow center you see is the "Wonder Fence", the standard LS-25 (https://www.incrementaltools.com/INC..._p/ls25sys.htm
) doesn't have that , but the "Super System" (the one you linked to) does--and it's only $80 more than the Standard. The Wonder Fence by itself could be added to your Ultra--buy by itself it's $180 (https://www.incrementaltools.com/Pro...de=WF/ULTRA_RT
I started with the original gold with blue trim, mounted on a board (auction buy). In looking to upgrade a few years later, I tinkered with a few Ultra's and Twin Linears, but found a lightly used LS-17. Advantage in the LS-series seems to be in the fine adjustment--with the lock lever in the half-up position and turn the wheel. Been a few years but I recall the Ultra to be a little more difficult to control--though my final decision was based on the price I got the used LS for being in line with the Ultra's i'd seen on CL and looked at.
Added a Wonder Fence (WF) from Amazon Warehouse (damaged packaging)--got a great deal at $110 if I recall. I don't use its full ability--but it definitely has been worthwhile. If I was buying a brand new system--I'd buy the WF upgrade for $80 even if I had no intent of using it. Even in my small town I could sell a used one for $120-$130 in a day. But--i'm keeping mine.
End of the day Rob--if you can find someone with an LS to touch and adjust in driving distance, it might be worthwhile to see if you think it's worthwhile. If I owned an Ultra, I'm not 100% sure i'd move to the LS, but I might. If you consider the WF, which would be a great upgrade if you don't have it--buying it with the new LS covers $100 of the Super System cost compared to the WF alone--that might be enough to sway me to move to the LS and sell the Ultra.
That should all be as clear as mud at night!! Good luck no matter what you do!!