I kept a "log" during one of my trips to All-Star Sports.
You may find this info helpful as to how often the All-Stars "share" buses.

It takes the Buses about 2 minutes to travel from Sports to Music and about 2 minutes from Music to Movies
I also did some Park Hopping:
Monorail from TTC to Epcot----9 minutes.
Monorail from Epcot to TTC----7 minutes.
Express Monorail----4 minutes
Friendship between Epcot and DHD----20-30 minutes(We actually did make it in 20 minutes one day!)
Saturday April 18-
Sports to Epcot----8:23AM to 8:33AM----10 minutes----Direct
Epcot to Sports----4:46PM to 4:58PM----12 minutes----Share
Sunday April 19----Sports to DAK(EMH)----7:44AM to 7:52AM----8 minutes----Direct
DAK to Sports----12:51PM to 12:57PM----6 minutes----Share
Sports to DHS----5:37PM to 5:57PM----20 minutes----Share
MK to Music----10:31PM to 10:52PM----21 minutes----Direct
(Hopped on a waiting Music Bus and then walked back to Sports.)
Monday April 20----Sports to MK----6:49AM to 7:04AM----15 minutes----Direct
(BOG Breakfast!)
Epcot to Sports----12:31PM to 12:42PM----11 minutes----Share
Sports to Epcot----2:44PM to 3:04PM----20 minutes----Share
Epcot to Sports----7:00PM to 7:12PM----12 minutes----Share
Tuesday April 21----Sports to DHS----7:58AM to 8:10AM----12 minutes----Direct
DHS to Sports----11:01AM to 11:15AM----14 minutes----Direct
Sports to DTD----2:23PM to 2:50PM----27 minutes----Share
DHS to Sports----9:57PM to 10:09PM----12 minutes----Share
Wednesday April 22----Sports to DAK----7:33AM to 7:44AM(EMH)----11 minutes----Direct
DAK to Sports----12:29PM to 12:37PM----8 minutes----Share
Sports to DHS----1:30PM to 1:49PM----19 minutes----Share
MK to Music----9:25PM to 9:40PM----15 minutes----Direct
Thursday April 23----Sports to Epcot----11:10AM to 11:19AM----9 minutes----Share
DTD to Sports----5:18PM to 5:37PM-----19 minutes----Share
Friday April 24----Sports to Epcot----8:06AM to 8:17AM-----11 minutes----Direct
Epcot to Sports----10:27AM to 10:43AM----16 minutes----Share
Sports to Epcot----12:23PM to 12:43PM----20 minutes----Share
Epcot to Sports----9:14PM to 9:30PM----16 minutes----Direct
Saturday April 25----Sports to DHS(EMH)----7:20AM to 7:30AM-----10 minutes----Direct
Epcot to Sports-----4:16PM to 4:30PM----14 minutes----Share
Sunday April 26----Sports to MK----9:15AM to 9:30AM----15 minutes----Direct
Epcot to Sports----12:20PM to 12:32PM-----12 minutes-----Share
Time to board THE SAD BUS!!!!BOOOOOOOO!!!!



