I have a TS75 as well and use it for cutting down sheet goods all the time. The only drawback to the TS75 is that you'll generally need longer guide rails to process a 4x8 sheet of plywood. For instance, to rip an 8' sheet of plywood you need the 118" guide rail vs the 106", which I'm told is all that's needed with the TS55. To crosscut you'll need the 75" instead of the 55".
Bikeboy80 said:
If I get the MFT 3 could I use the 42" guide rail and 75" with the saw to rip 8' sheets without plunging into the sheet? I was going to order a 55" to go with but I guess it might be better to go with the table if I could connect the rails to rip. Save the money for getting a single long rail down the line, right?
The MFT is great tool as it has so many uses, other than just a crosscut table. I believe the MFT comes with a 32" rail though, so joining that with your 75" won't be long enough to do an 8' rip.
The 3 rails I wind up using the most are the 118" (3000mm), a 55" (1400mm), and the 32" on the MFT. The 118" is a hard one to swallow ($$) but as someone already mentioned it's dead on and you don't have to fiddle with joining rails. If you need to do longer cuts on the job site instead of in a shop the 118" might not make much sense, as transporting it can become an issue.
Oh and if you want a 55" rail and you think you might have interest in a Festool router down the road, seriously consider the LR 32 version (FS 1400/2 LR 32). It has the machined holes for their LR 32 Hole Drilling system.