Calibrated superstructure limits.

Change-Id: I5bb72dc008f081bffb28b28fee993b0e422b5975
diff --git a/y2016/control_loops/superstructure/superstructure.cc b/y2016/control_loops/superstructure/superstructure.cc
index 140bf28..2dbf8d7 100644
--- a/y2016/control_loops/superstructure/superstructure.cc
+++ b/y2016/control_loops/superstructure/superstructure.cc
@@ -14,9 +14,9 @@
 namespace superstructure {
 
 namespace {
-constexpr double kZeroingVoltage = 4.0;
-constexpr double kOperatingVoltage = 12.0;
-constexpr double kLandingShoulderDownVoltage = -2.0;
+constexpr double kZeroingVoltage = 6.0;
+constexpr double kOperatingVoltage = 6.0;
+constexpr double kLandingShoulderDownVoltage = -1.5;
 // The maximum voltage the intake roller will be allowed to use.
 constexpr float kMaxIntakeTopVoltage = 8.0;
 constexpr float kMaxIntakeBottomVoltage = 8.0;