(09 Dec 2014, 5:14 pm)NEBCD Malarkey wrote I would think its because it would cause more Congestion, for example what if the X1/4 moved onto the Stands currently occupied by the 2A/2C/23/37/50/82/83/85 and 86 on either side of the Bus Station, and you Two 4s and Two X1s come in wanting to be on the one Stand, it would be mental, hence why they are on the Double Stand and the Set Downs remain unused to ease the Congestion.

Not sure I follow... if the set down stands were used correctly, to allow alighting passengers to alight, before moving on to the correct stand, then there shouldn't be a problem? 

I can't recall what other services use stand A or D. I don't think any actually use stand D, other than the 4/X1, but the 8 uses stand A towards Chester? Having said that though, the 8 is due at 22 and 52 past the hour, and the 4/X1 in that direction is 8, 18, 28, etc. So there should never be a need for the 4/X1 to pick up passengers at any stand other than A or D.