I noticed on tunes' site that the road front uses an alu rod and the mtn uses Ti, plus the rear road uses a steel face on the nut I believe while mtn uses alloy - I'm leaning toward a mtn front willing to give up a few grams to greater confidence in the longterm life of the skewer - would you agree?
The weight difference is really neglectable, so if you feel safer with the Ti version, go ahead! you are right about the longterm reliability issue, though.
And where do they place that steel insert - the rear nut?
the MTB set i have has the washers on both sides. but
it might be they changed it over the years - you could go ahead and ask them yourself, they speak english and have been very fast to reply in the past.
e-masil iirc was email@example.com
- just look on their website!