One more thought: normally you are advised not to sit too low (height more than 60cm depending on the length of your legs) for 3 to 6 weeks - this is the period when it is likely to ruin your new hip joints if you do not follow the advice. Afterwards your joints should be reliable.
Karl
Life is hard in the mountains
2009 silver +4, 2013 red C4P, 2014 yellow M3W gone to a new owner
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