I didn't receive a starter kit with my Sisterlocks installation, after spending $1000 for two Sisterlock installations I should be entitled to it, but that's another blog post for another day.  Since my installation on September 26, 2011, I've used 'Tingle Shampoo' by Rasta Locks every two weeks.  I create a 1 part shampoo to 4 parts water mixture in a spray bottle, braid and band, saturate my hair with water and spray the shampoo and water mixture onto my hair.  It suds up real nice, has a tingling sensation and leaves my scalp feeling clean.  I find that it's fairly easy to rinse out.  I haven't had an issue with any shampoo residue or any product left in my hair post rinsing.  The price is reasonable compared to other advertised lock or natural hair shampoos.  I purchased mine at the Natural Hair Show in Atlanta back in September for $3.00.  I've seen it on sale in local beauty supply stores from $4 - $6.  I also find that it makes my hair 'rough' in texture, which I've been told will help my hair lock faster.  If you've tried Tingle Shampoo comment and let me know how you like it.