I'm always gonna stand by the UD.20/RFL style refeeds.
1) Sh*t tonne of carbs
2) Sanity - Makes you feel like you're binging when in hindsight all you're doing is restoring glycogen. As lyles recently mentioned, i don't think leptin is effected that much but still... carbs.
I don't sweat the small details besides that. Just make sure you're depleted enough that you actually warrant the refeed to avoid any form of spillover.