What ever questions / concerns you have send them over. I've had the mfactory 5.46 for a few months now and would recommend it to everyone. I do a LOT of m'way miles as use car as daily and it's not too much, well not for me anyway. The pros definitely out weigh the cons.
To give you an idea, 70mph is about 4,300 rpm but tbh mpg hasn't really changed. I've just been amazed with the 5th and 6th pull now, it's more akin to 4th and 5th. 2nd and 3rd is brutal, especially with 260hp lol
tricker Luke has a 5.1 so he can talk about that one but IMO if you want to explore a different FD, then 5.1 is too subtle and the 5.46 just puts a smile on your face. I think people have been a little nervous going for something as aggressive as a 5.46 for everyday use so have typically stuck with a 5.1 but trust me it's not that bad!
On the track, well I'm speechless, it's just epic