I've been struggling with "dialling in" boots for comfort vs performance for as long as I can remember, both in racing and then just free skiing. Even now as an entry level coach I'm still fiddling with it. Many is the time I recall years ago cranking down the buckles and booster strap to get response and going just that bit too far and getting pins and needles or losing feeling (and warmth!).
I'm very much enjoying the comfort of my Xmax 130s. First boot I've ever had with all day comfort and no major swelling I take out the top rivet for teaching, getting lazy about putting it back in. Pls disregard this item for my next question.
I've been skiing recently with just the second eye of the buckles clasped. However, I recall last year clamping to the third notch and feeling the performance kick in more than a bit. The Salomon is a soft boot for certain (I preferred the snap of the Nordica Doberman, but couldn't take the cold. The Atomic Redster can't fit my lower volume foot). Tried it again this year and just didn't feel the same power "kick" as previous. Trying to get back there.
The boot does stiffen when I clamp down another notch, but I'm trying to understand if there is a tangible performance benefit (aside from quicker lateral transmission - thinking more about the power transmission to the ski).
My previous Nordica and Atomic had a real "accelerator" feel to the flex that I found that time I clamped down a bit more, but trying to ensure it's not just in my head (power transmission).
I'm talking low to medium speeds here : basically slalom speeds.
What are the actual characteristic changes to tightening the buckles when it comes to power transmission and response to the ski?
Is there a performance decrease point in over tightening? Any rules of thumb?
Thanks guys - insight most appreciated!