Alright. I have a question on this topic as well.
Normally I don't worry to much about clarity and with floccy yeast it's really not much of an issue but I am mid speed brew for a party on the 17th with my brew club and I want to impress them

so I am trying to get a really clear beer. I used WLP002 and that, in my experience leaves the beer pretty clear after cold crashing but I want to go ahead and fine it according to the schedule in the zymurgy article. But I only have the 1 keg so there is no fining in the keg and transfering to a clean keg.
Should I add the 'gelatine' (agar actually as I am a vegetarian, but same difference) to the primary tonight? or should I keg tonight and add the finings in the keg, just blow out the first pint tomorrow?
If in the keg would it work to add the disolved gelatin to the empty keg and then rack the beer on top of it to mix?
**EDIT to explain status of brew**
I brewed friday night og 1.033 sg last night (Tuesday) was 1.012 which is fine for me. Put it in the fridge to crash last night. The plan was to fine in primary tomorrow night (wednesday) and keg thursday. I was going to just leave a fair amount of beer behind in the primary to avoid as much yeast/trub as I can.