By the way, for a Rigger who doesn't jump in or use Command Device, Jammers are a blessing. 6 Noise from a Jammer, of which a Decker will compensate perhaps 3, and -2 penalty from being on the Public Grid, combined with 6+1 Firewall and a DR of 3 (or a Willpower that's higher) means the Decker loses 5 dice and you resist with 10. Add the Barrens and you'd be at 10 vs -7.