I've found that as long as I plop for less than 10 minutes it doesn't mess up my curl pattern or make them lay oddly. I also found that using a flour sack towel (and the technique explained on livecurlylivefree.com) gave me better results than the t-shirt plop I found illustrated here.

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3a/f/iii
Modified CG since 11/5/11
CLEANSE: CJ Daily Fix, DevaCare No-Poo, CHS Treatment Shampoo
RO: SS Caitlin's Conditioner, CJ Beauticurls Strengthening
LI: SS Repairing Protein Treatment, CHS Silk Leave-In
STYLE: Re:Coil, Curl Keeper, Deva Ultra Defining Gel, Curls Rock Amplifier,Sweet Curls Elixirs Okra Gel and Hard Hold Gel, SS Curl Enhancing Jelly and Firm Hold Gel