I've had these before. Yeah they do gel.
Are you snorting or shooting? If you're snorting, then dont worry about the gel. If you're shooting then yeah you need to crisp them. This should help:
Opiophile rocks. That link is to the morphine section, but they have one for basically every opiate as well as every aspect of opiate use and junkie life. If anyone is a member there and wants to reccomend me for membership, that'd be pretty cool.