"Damn I could climb pretty hard in these!"
And I was right.
"Wow! Really nice LWT ski boot!"
And indeed they are, even better as a ski boot than I ever expected!
No question some user over lap in these two boots. But I still think my first impressions defines both boots for its best use. Happy that I am lucky enough to have booth. Hate to have to choose between them. I have been really happy with the TLT5 as a climbing boot, even though it was never designed as a technical climbing boot. The TLT6 is without a doubt a ski boot first and foremost by design. And it will still climb reasonably well on alpine and technical ice.
Much as I hate to admit it.....if I had to choose only one? The 6 would be THE boot. For the 6's added ability on skis..I could suffer some if required to climb in them.