Mike et al.,
I'll be the Race Director at Roebling this year ::). The schedule is really solid for those events. Track management will have open practice on Friday. Keep in mind that Twin Sprint weekends are pretty economical ;). This year your first non purse race is $70, second is $50 and all others $35. So if you run three events on Saturday and again on Sunday, you will pay $70, $50, $35, $35, $35 and $35. Look closely at the pre-entry forms for the SAT & SUN columns. You do want to check off both!