What do you mean "TT Guardian feed", the data feed for X-Trader? IMO X-Trader uses the same FIX protocol to receive market data. I did data comparison with Zen-Fire and I found that my incoming data for ES futures are aggregated. (Is it the syn for coalesced?). I can not find my message on elitetrader with market data comparison. For my purposes I am fully satisfied with data from TT FIX so I do not pay additional fee for Zen-Fire datafeed.
TT feed via FIX protocol it's not always the same thing vs. TT Guardian feed: as said Ninja uses a compressed (i.e. coalesced /aggregated feed) so you can see and measure different ticks broadcasted tru TT Fix to Ninjatrader vs. X_Trader Guardian.
ONLY for NT use.......TT Fix Adapter feed is NOT coalesced as a standard practice. The feed has to be coalesced for use with NT6.5 as this present time......not sure if that will change in the future with NT7.
The beta is out already. I would prefer them to get it right, rather then rush unfinished product out. When real $ on the line, reliability is number 1 factor. 6.5 is very solid, and unless you trade large number of instruments at the same time, it is great.
Ninja via TT works through the same FIX protocol, you may find Ninja log files with login/subscription requests. So it depends upon the server' configuration, does it aggregate data or not.