No need to "replace" the Twinhan, if you have enough slots. I have a Twinhan, the TT3200, a Broadlogic, and an ATSC OTA card in the same computer, and up until 2 days ago all worked together fine (although I've been having some issues with the Broadlogic of late). My Twinhan has a passthru so I can run the Twinhan and 3200 off the same signal, but unfortunately the 3200 doesn't have a passthru. However what I've now done, is since most DVB-S2 is on C-band, I have my Twinhan card connected to my 2 3' dishes, and the 3200 is connected to my C-band dish.
I was surprised re Brent's comment about the 3200 having a "better" tuner than the CS. I'm not sure how the evaluation was made, but the only way I could compare the two was whether or not they would lock on the same signals, and my Coolsat would generally lock weak signals that the 3200 wouldn't lock, so it seemed to have a more sensitive tuner, although that doesn't mean that the 3200 might be better in other respects.
One thing that annoys me about the 3200, is that apparently the drivers for the card try to search for signals when they aren't found or lost. I generally use the card with TSREADER, and if I'm watching a DVB-S2 channel, and then move my dish to another sat, when the 3200 loses the signal, it tends to lock up TSREADER for something close to a minute, while it's apparently searching for the signal. Can't do anything with TSREADER until the darn card gives up. Same thing when you try to lock a signal that it can't lock on.
Another apparent issue relative to this search thing, is that this search will take the card WAY off freq. It will lock on a signal that is at least 20 MHz off freq, which confused me to no end when I was on the wrong polarity once on a sat that had two DVB-S2 transponders right next to each other. I tried to tune in one of the two, and after a LONG pause, it locked on the wrong transponder, which was 20 MHz away. Switched polarity, and the thing seached back to the correct transponder. All without re-tuning TSREADER, which ended up displaying the channels from BOTH transponders at the same time. Then moved the dish to another sat, which had an S2 transponder with same SR on a close by freq, and it locked onto that signal without re-tuning TSREADER.
I've also locked signals with it, when I had the wrong parameters keyed in, and couldn't figure out why I couldn't tune the transponder with 2 other receivers, only to find out that I had the freq wrong by 10 MHz. I'm not sure if this tuner behavior is a good thing or bad thing, but it sure confuses me at times.
Another issue with the card, is that TSREADER doesn't seem to have complete control of it. Sometimes TSREADER will say that the card isn't locked, but it is, ie you can see the data flying in, and the thumbprints are updating, and I'll be streaming to my Roku or VLC, but the S/N indicator says that there is no signal and no lock.
Overall though, I'm glad I got the 3200. It's well worth all the problems to have TSREADER capabilities on S2 signals.