Confused about Wild Strike Mechanics and Jewel Effects

What about crit chance? If my character sheet says Crit Chance with Main Hand = 50%, do the secondary effects also have a 50% crit chance? If I crit with the initial attack, do the secondary effects automatically crit?

Man, this skill is confusing.

Crit is rolled once per skill use, if you rolled a crit all hits that were a product of that particular use will crit (or at least roll crit threat if it's an attack), and if the skill is repeated (multistrike or echo) it will crit again. If some parts of your skill have different crit chance you may get some crits and some normal hits, it may even differ per enemy if some were cursed with assmark.

So, if you took some 'melee crit chance' bonuses you will have different crit chance for initial hit and secondary effects.