Personaly, I would love to feed traffic out of the lower end of the hold and a hold closer in would make sense and be easier to manage. As to it being over SHJ, it may present a problem with the SID's to RIKET, MAXMO or PAPAR depending on the runway. If something like that is done, it would call for a major revisal of the SID's and STAR's. The problem is that GCAA do not allow approach to hold traffic. We can only hold one at the missed approach holds in the event of a go-around or other problem.
The current procedure is for ACC to feed them out for us with a set spacing. They do a good job, but it can't be easy trying to vector a couple of labels to exact spacing at the bottom of a mass of spinning labels and still work on a screen with a scale set to work the rest of their airspace too!