naw, no que sheets, i just ride it. but its very straightforward as there are very few turns on the trails

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an alternate i do starting out of seattle is the i-90 corridor to issaquah, then the preston connectors to snoqualmie & up to the falls, then to the continuance of the svt to the iron horse, up to camp (used to ride thru and wind up in Cle Elum on some overnighters
snoqpassultralite.jpg and on the way back to seattle take the svt from north bend back to the Tolt or at least the woodinville-duvall road to get back to the Burke and return to seattle.
Thats an under 100 mile loop from seattle to the tunnel entrance from from my recollections.