The LT2 remains the BEST performance track flat in existence, with the Adidas Takumi Sen a close second.
The LT3’s have been terrible for me. My foot slides to the sides on the turns of a 400m outdoor track and my foot slides forward into the reinforced toe-piece when I run 400m pace or faster. It does not matter if I wear paper thin socks or the thickest socks Nike makes, the foot slides.
I said to myself “OK, I’ll just use them for 3K-10K pace work then” but they’re less cushioned in the forefoot than the LT2 and I tend to experience more foot and heel pain than I did in the LT2’s. I’ve only bought one pair of LT3’s and they have about 5 miles of total use because they don’t fit into any sensible shoe rotation.
Ironically, the Streak 6 has been one of the best flats I’ve ever owned. It’s perfect from top to bottom and hugs my foot like a glove. My only complaint is I’ve had two pairs tear out on the lateral side by the pinky toe after around 50-60 miles. It has been a very common issue as I’ve seen A LOT of similar posts on here and on instagram.