I like the T1 nd usually carry at least two in the front tubes with me and T3... somehow I do not like the T2... or better to say... the T3 is slightly faster... just slightly.
I tried using the FaT but they saw it and evaded...
Seems some have said it... waste of 100 renown
So my combo of torps:
All electric but 50% of tubes loaded and appropriate reload
so on my IX I carry 2T1 in the tubes 2 to reload and 2 in the external - bow and 2 to reload stern and two external ... if those are FaT... i will just use them and rely on a hit... but I miss not often now that I ma used to OLC... so... again... I think they are just wasted renown from the one trial of them... but I will continue maybe it will get me some ideas...