This isn't about rollers, but about a couple of great hair products I've found that I really like.
Our hairstylist suggested a product for my daughter to use before she uses the straightening iron. It protects the hair from the heat damage. I'm sure it would work the same for the hotsticks. It's called Pureology SuperSmooth Hot Iron Protection. You will probably only be able to find this at salons or beauty supplies.
And L'Oreal Studio Clean Gel. I use it like I would a mousse or gel to hold the curl in place, or just to 'scrunch' my hair. This does not leave that sticky, clumpy, wet-look feeling like so many gels and mousses do.