I have climbed with them three times on Rainier, once in Bolivia and multiple times ice climbing in Ouray CO. They have always been excellent and I would recommend them.
For reasons related to my knees I want to do either Stairmaster or box step ups for my ME.
I know you prefer box step ups but you spend half the time in that exercise stepping back down.
Is it meaningfully superior to Stairmaster?
I did a test run of the process this morning and everything worked great so thanks Umer and Mark for the info, no need to cover this in the next zoom meeting.