That's it! When there is not a crew you have to go on the low side of the mast ---Funnnn sometimes on all fours Knees and Hands so you could scramble back to the high side! The old NACRA had mine fields like the center tube in the tramp, low boom, and the scalp reducing mast rotation limiting bar under the boom.
Dont forget the 4way jib adjuster.. thats the one that makes my knees bleed, and what i get stuck between my toes when i am scramblin around...