- Familiarity: I've used it several times
Bought this as a replacement for a Schwalbe Hans Dampf I ran on the front of my old Yeti SB95 on Nobl wheels. I only got the tire out for a handful of rides (all on the same trail behind my house), but they were all hairy and one ended with a torn thumb UCL. I started out with about 24psi and noticed that front felt squirrelly and uncertain. On sharp turns, I could feel the sidewall deform and push me out of my line. On subsequent outings, I compensated with 3-4 more psi and the front still felt unpredictable, tending to deflect rather than roll over the rocks in the trail. I backed off the pressure a little and then, coming down a fairly tame soft-over-hard descent that I've safety negotiated at least 40 times, all of a sudden, I lost traction (maybe a deflection, maybe a wash-out, it happened to fast to know), the bike went right, I went left and the result was thumb surgery and months of PT. Once I healed, I tried another experiment with the pressure and, no surprise, the front just deflected all over the place on the ascent up the same hill that threw me. I was starting to wonder if it was me and not Mary that was the problem.
Today, I mounted up a Maxxis DHF (25 psi) and took that sucker on the same trail and it was like a revelation. It tracked straight and true, rolled over rocks with no noticeable deflection and gave me the confidence I'd lost to the Magic Mary.
I'm sure some of this is user error; maybe I never quite got it dialed in right, but after five rides that always left me feeling uneasy - or broken - I just couldn't face more experimentation. Your mileage may vary, but I found the Magic Mary on my current setup to be a dangerous proposition. I may eventually go back to the Hans Dampf but I couldn't, in good conscience, recommend the Magic Mary to anyone who doesn't have excellent health insurance.
do you remember the compounds of the tires, sizes and what conditions were you riding in? like dry or wet, loose etc? i know the DHF well. and would you happen to know your rim width?