I'm going to take a stab in the dark and guess that you mean;
Can you remount equally both sides or do you have a preference?
I think that it saves a lot of time to be able remount both sides and after a few goes it seems no problem, but yes, the first time I tried I was much better getting on from the left hand side.
This lead to me having to go under the ski to the other side to remount the first time I fell out.
Fixed the problem the next day with a bit of practice.
Follow the path of the independent thinker. Expose your ideas to the dangers of controversy. Speak your mind and fear less the label of 'crackpot' than the stigma of conformity. And on issues that are important to you, stand up and be counted at any cost.--- Thomas J. Watson