[UPDATE: And, you know, I guess I hadn't considered the one-way streets. Particularly inbound, they can get you there fast if you're up for lights timed at 20-something MPH. I've seen people on Oak and Golden Gate inbound, but, due to geography most likely, I haven't seen that many using the outbound analogs Fell and Turk. See footnote.]
Well here we go. This shot from United 931 shows, in high relief, why you’re better off talking McAllister Street, Bike Route 20, to downtown from the Panhandle and vice versa.
You see Alamo Square inside the red box on the lower left? It’s the summit of Alamo Heights, sitting there in the sunlight jutting in from the left.
The vaunted Wiggle bike path takes you from the Panhandle through Lower Haight and then behind the Church Street Safeway to Market Street and beyond. Your preferred alternative has you leaving the end of the Golden Gate Park Panhandle by taking Baker north to Fulton to Divisadero up to McAllister. That’s the pass over Alamo Heights – it’s the intersection of McAllister and Divis. Then it’s all the way downhill to Market.
You’re going between the camel humps, between Alamo Square and Kaiser Heights (seen in the sunlight on the left side).

Via jpp123
Now it’t true that Route 20, aka the Snickerdoodle, does have you climbing up, outbound, 20 more feet vertically, net, than the Wiggle (and also inbound – there’s one block of Divis that’s uphill a bit) and it’s also true that Route 20 has a couple steeper blocks betwixt Fillmore and Pierce in the Western Addition.
But, Route 20:
Is a third of a mile shorter
Is faster*
Has better pavement
Has you waiting less time staring at red lights (which is nice when compared to the Wiggle’s concomitant Market Street section with the Octavia Boulevard obstacle, which has traffic signals biased for car drivers heading north-south using Octavia)
Avoids hated Octavia Street / Boulevard entirely (cause Octavia simply doesn’t exist as a road in the McAllister area – it’s like you have a permanent green light)
Has less traffic
Has fewer peds to deal with
Has fewer cyclists to deal with (cause, you know, especially in the Lower Haight area, you just don’t know what those cyclists are going to do)
Is, due to the factors cited above, safer
Avoids the ridonculas behind-the-Safeway-to-inbound-Market puzzle that makes no sense (that I can see – I don’t know how to get across Market at Duboce legally without getting off and walking in the crosswalk)
Has zero cops sitting around handing out tickets (because you’re avoiding Fell and Scott, and Duboce and Steiner, and Haight and Pierce, and all the other places the SFPD hangs out during those periodic stop sign and red light enforcement actions)
Has Gallery 1269 to look at (optionally)
So, I don’t care, go whichever way you want. I’m just saying the Wiggle is the wrong way to get the Panhandle (and Beyond) from Downtown.
And vice versa.
*I suppose that jinking over to Oak and taking it all the way (almost) to Market might be faster still, although you’d have to decide which side of the street to go on. (The left side has more room, but there’s no longer a dashed line to keep left lane traffic out of your way. The wait at Octavia Boulevard might slow you a bit, however.
Oh, and there’s Golden Gate Avenue as well, inbound…