Are T.I. Flats for fingerstyle exclusively or do they sound decent using your thumb?  I play a lot of different styles and I was wondering how good it sounded.  I am really attracted to the long life of the flats and I've already ordered some.  Anyone thump the flats?

I think they take away your union card if you do that...

I slap my D'Addario Chromes- They certainly don't have the brightness of roundwounds, but they sound decent.  
 
If I was playing music that required LOTS of slapping, I probably would switch to roundwounds. Don't know if that answers your question about TI's, but I do know I can get a decent slap tone out of my Chromes.

Slapping with the Chromes is possible and a decent sound can be had.  But to me, when slapping with a TI, it comes out kinda thin.  I think that they are not made for slapping.  They are just too tiny.

Hey, DF!  Maybe I haven't been reading the same threads that you have, but I haven't seen you around for awhile.  IIRC you work on an offshore rig (is it still there?).  Someone said that your town isn't where the hurricane hit hard so you probably didn't get wiped out. So, wazzup?
Rich

my town survived last years hurricanes, and I work on several different rigs.  None of the ones that I worked on were damaged, but I got re-assigned to a boat that is cutting up damaged rigs.

I put a set on my 6-string, and I slap them.
 
I not exactly talented when it somes to slap; mostly just octaves and stuff.  The B & A strings and E & D sound better to me than rounds did.
 
With rounds, I couldn't ever get a tone that sounded okay fingerstyle and didn't sound too shrill on the pop.

a little more info on the hurricanes,
  I work for a rov company(remotely operated vehicles) and we are using the subs in conjunction with divers to dismantle destroyed rigs and making artificial reefs with the remains.  You would not believe how these hurricanes twisted the rig structure into spaghetti.  The fish have already moved in.