I know this is a few days old, but not sure if you have made your purchase yet?
<snip, with RT-TS-RT must lower the bit to move shared fence, and keep resetting the fence as you move between each tool>,
For myself, personally I say if you have the room go with the TS system on the saw and use the independent double router table setup. If space and/or cost is THE determining factor go with the RT-TS-RT set-up but bite the bullet and go with one of the combo kits such as Incra Jig Table Saw Package #5
Just my .02
I spent some time on the phone with Woodpecker to understand the tradeoffs between the different packages, including shared setups with routers and table saws, and the lady (Karen) was very patient and helpful.
Summary: jeremylinot is right, and it *is* fundamentally a tradeoff to keep lowering the bit to share the fence with the saw and/or routers. The "good" is you only buy one fence, but the "bad" is that since the fence is shared, you need to keep moving it between the saw and/or routers. Of course, the Incra makes returning to a given distance easier, and a router lift makes raising/lowering easier, but you still have to do it.
(I suppose this should have been obvious to me, but I didn't know anyone with the RT-TS-RT setup, and wanted to hear how they liked it.)
No, with the Woodpecker packages you can't put "router-left", "router-center", "router-right" on the same table (sharing three routers), but you can put a router on each side of the table saw, or arrange up to two routers on their own table.
So, I decided to set up two separate (but identical) router tables. I have a lot of work to do, and wanted to be able to "keep" my settings when bouncing between routers. They arrived this week from Woodpeckers, and I'll put them together this weekend.
This is my first Incra, so I'm really interested in learning how to use it ... I'll let you know how it goes!
Thanks for the thoughts! Let me know if you have other suggestions.