Based on their pace, 20-22 should be done within a week or two I would guess.
We had a near HH reservation and I requested anything in 23-26, but was hoping for 23 and got it. 23 is our preferred spot, as it's easy to walk over to the HH, and also gives you bus options between the Peninsular Rd pickup or the pickup at HH (depending on the bus). Peninsular Rd is the first drop off point from the parks, so we would get off there. HH is the last pickup point on the way to the parks, so we'd usually walk over there for pickup (after swinging by Goods to Go for coffee/pop!). We couldn't have been happier...got exactly what I was hoping for!