SteveC said:
Your thoughts for sanding drywall and some minor wood work.
ETS 125, RTS 400, RS 400
The RTS sander is great for drywall, but I'd suggest you get the DTS version instead. The delta pad of the DTS400 is a lot more comfortable to work with because it gives you 1 - better stability, 2 - bigger surface, 3 - you can get into corners and 4 - you can use any sandpaper from any manufacturer you want while for the RTS you can only use Festool's paper.
I first bought the RTS400 and later the DTS400, and well, since I got the DTS I hardly use the RTS. Now the RTS only comes out when the size of the area I have to sand doesn't allow a bigger sander.
I heavily recommend the DTS over the RTS. And the DS over the DTS.
SteveC said:
I know the RS 400 is DC'd (still available) but does the RTS 400 have a marked improvement. (+$40)
I had both the DTS400 and DS400 and in the end I sold the DTS and kept the DS. I prefer it because it is more aggressive and makes the job done quicker. Only problem with the DS/RS is that after a while you will get a tingling feeling in your fingers and that's why they changed the counterweight in the machine and named it the DTS/RTS. But this came at a cost, it made the machine tamer. Personally, I don't like tame sanders because they will cost you more time to do the job.
SteveC said:
The one with maximum dust collection would have a major point tipping point.
I've used both the RTS400 and the DTS400 for drywall and they both have excellent dust extraction. I've also used the ETS125 and while it works pretty good the dust extraction was not so good. If you got an ETS125 (or any other RO sander for that part) use it as you like for drywall, but if you have to go out and buy a new one especially with drywall in mind, go for an orbital sander. DC is much better with an orbital sander.
SteveC said:
Oh yeah, it would be hooked to my new CT26 with a 27mm hose because I understand my 36mm (for my Kapex) would create too much suction to the surface.
Even with the 27 mm hose you will have to turn the suction down with the RTS and DTS sanders.