Or the next time anyone wants to tell you ramp angle isn't a problem on b/c ski bindings.
The difference between a Dynafit rental heel and a Dynafit Speed Super Light heel is 21mm. Or just over 3/4", .789" or there abouts.
Then think about just how well you would ski if you stuck a 3/4" lift under your heel. Sure you can shim the toes as Dynafit does with their spacer or use one of the B&D versions.
Or you could actually use a combo of toe and heel that has the least amount of ramp from the get go.
My suggestion? ZERO ramp.
Some asked so here ya go guys.
A couple of Dynafit combos I am currently using that I really like. Not easily put together here in the States but easy enough else where or if you travel/go on the Internet early season. Either system is easy to use, super strong in any alpine situation you'd use a touring boot and most importantly to me, proven reliability.
I'd bet these guys would be happy to put it together for you given some notice. Tell them I sent ya :)
These combos give you +4mm to a -1 depending on adjustment plate or toe shim used.
Speed Superlight toe, no shim and a race heel (-/+ 0)
Speed Super light toe, no shim and a adjustment plate w/race heel (+4.5mm)
Speed Radical toe, 6.5mm factory toe shim and Superlight heel (-1mm) (toe is hell for stout)
Speed Radical toe, 6.5mm shim and Superlight heel with adjustment plate (+4mm)
Even the worst of the combos above is a full 9+mm less ramp than a current Speed Radical.
Once you have skied @ -0- it is really unappealing to go past even 3 or 4mm. And that isn't even taking into account stack height on the bigger ramp angles and the traditional shim fit to get closer to a -0- ramp. All of which I find almost as annoying but in a different way.
My go to binding set up for most skiing of any sort is a race heel and toe. No shims. But if you want a adjustable heel and low ramp, use the Dynafit Speed Superlight heel with track, and add the factory 6.5mm toe shim to what ever toe you use. Cut the top clip off for the race toes to fit. Works perfect.
I unintentionally skied a good part of my season last year on the Race binding and the back adjustment track ending up with 4.5mm of ramp. While I would have preferred -0- ramp the 4mm wasn't annoying.
As Linnaeus noted boot board ramp angle and boot forward lean is also an import factor here. The most modern boots I think will perform better and you as a skier with less binding ramp angle. Pretty common stuff in the alpine world. The BC boot and binding makers have different priorities. My take on that is it isn't helping anyone to ski better to use more ramp angle on their bindings. Good skiers can work around a lot. Others not so much.
More here on ramp angles of Dynafit bindings: