La Sportiva has their Pegasus buckles available with individual SKUs if you want to pick some up to mod your TLT6. The buckle I used was the lower one at the toe of the Spectre boot. It’s worked well for more than 50 days of touring, only issue is the length adjustment gradually loosens. But it takes only seconds to re-adjust using the super functional “bicycle brake adjuster.” More, I’ve found that the B&D UCP Ultimate Cuff Rivets are working beautifully. My install has not loosened up. For months now I’ve been enjoying the friction-free and nearly zero play cuff configuration on my TLT6 boots.
Dynafit TLT6-P is the finest boot Dynafit has ever done — and easily the best boot on the market for ski touring that involves lots of human powered vertical. But nothing is perfect and I have a workshop.
I figured out a few options for the buckle swap mod, and chose one:
1. Modify the OEM buckle system. I tried this. Too fiddly and I didn’t like the bulky buckle riding on top of the tongue.
2. Use buckles from Scott Cosmos. Nice buckles and they’d work, but ladder is riveted on without an easy way of removing and re-attaching.
3. La Sportiva Spectre. Lightweight “Pegasus” buckles with a beautiful low profile. On and off with threaded fasteners, fit perfectly like they were made for the job. Available from La Sportiva as a spare part.
I’m probably going to get asked “Lou, how essential is the buckle mod?” If you don’t climb much without skis, I’d say it’s probably not necessary (though fun!). But if you do a lot of ski alpinism that involves scrambling and snow climbing without skis, or if your skiing involves bashing through a lot of rough vegetation, you’ll find this mod to be valuable.