It's depends upon getting signals from transponder, if they got good signals then they will increase symbol rate of tp, to add more bandwidth. This tp giving best signals among remaining adtv using tps for me.
Actually i think it has something to do with settings for new transponders still not installed in most boxes, software update is going on for last 8 or 9 months. 1st time it is taking such long for software roll out to b completed. Maybe as i have been saying that this update will bring in major changes. Symbol Rate being low on new tp might b makeshift arrangement for it to b accomodated in older software. Plenty chs in waitlist bcoz they will get desired lcn slot after new lcn placement r into play