I use gelatin in most brews, and I dont notice much, if any difference in carb time; No need to add any more sugar than you normally would. I let my brews sit for 4 days after adding the gelatin. Still a good idea to rack carefully to the bottling bucket.
I have bottle carbed a RyePA that was fined with kielsol and chitosan (Super Kleer KC)...no issues...
Packaged: A bunch of random stuff...*and* American Pale Mosaic SMaSH Recent Meads: Mead Day '11 Ginger Metheglin, Mead Day '12 Traditional (orange blossom) Mead, Fresh Simple Cyser '12 Primary: Hopefully being refilled next week! Secondary: Why do I keep this line here...? Bulk Aging: Cocobochet Planned: Hop Metheglin #3 (NZ hops), Trad. Gesho T'ej