eh....unless you are washing your boots, all clothes (which is actually feasible), backpack, and sticks/platform/etc....then I wouldn't pin point those straps EXCEPT for the fact that those straps are at a lower level on the tree and therefore any scent on them doesn't benefit as much from any uplift of wind (thermals or otherwise)
if it really bothered me, i would consider 2 sets of straps (maybe 2 sets of steps and straps) and then have one dry and ready to rock and one being washed/drying and rotate
that's maybe one more advantage of the amsteel attachment i use....the dyneema that amsteel is made of is relatively inert (that's why even strong solvents don't affect it much).....my gut says that if gasoline has a hard time forming a chemical bond with it so as to destroy it....then human scent is less likely to interact with it also at the molecular level where everything is actually occurring.....who know, would be a neat test
maybe in the future dyneema suits will supplant scent lok (and actually work whereas scent lok does not after the carbon becomes saturated the first time....the drier does not get hot enough to reactivate....which everyone that uses activated carbon knows)
en.wikipedia.org