diff --git a/bsp_q7s/callbacks/rwSpiCallback.cpp b/bsp_q7s/callbacks/rwSpiCallback.cpp
index 3ca3c181..d4163020 100644
--- a/bsp_q7s/callbacks/rwSpiCallback.cpp
+++ b/bsp_q7s/callbacks/rwSpiCallback.cpp
@@ -2,6 +2,7 @@
 
 #include "devices/gpioIds.h"
 #include "fsfw/serviceinterface/ServiceInterface.h"
+#include <fsfw/timemanager/Stopwatch.h>
 #include "fsfw_hal/linux/UnixFileGuard.h"
 #include "fsfw_hal/linux/spi/SpiCookie.h"
 #include "mission/devices/RwHandler.h"
@@ -10,6 +11,7 @@ namespace rwSpiCallback {
 
 ReturnValue_t spiCallback(SpiComIF* comIf, SpiCookie* cookie, const uint8_t* sendData,
                           size_t sendLen, void* args) {
+  Stopwatch watch;
   ReturnValue_t result = HasReturnvaluesIF::RETURN_OK;
 
   RwHandler* handler = reinterpret_cast<RwHandler*>(args);
@@ -18,7 +20,7 @@ ReturnValue_t spiCallback(SpiComIF* comIf, SpiCookie* cookie, const uint8_t* sen
     return HasReturnvaluesIF::RETURN_FAILED;
   }
 
-  uint8_t writeBuffer[2];
+  uint8_t writeBuffer[2] = {};
   uint8_t writeSize = 0;
 
   gpioId_t gpioId = cookie->getChipSelectPin();
diff --git a/linux/fsfwconfig/pollingsequence/pollingSequenceFactory.cpp b/linux/fsfwconfig/pollingsequence/pollingSequenceFactory.cpp
index b1d0a218..f08e08d4 100644
--- a/linux/fsfwconfig/pollingsequence/pollingSequenceFactory.cpp
+++ b/linux/fsfwconfig/pollingsequence/pollingSequenceFactory.cpp
@@ -33,27 +33,28 @@ ReturnValue_t pst::pstSpiRw(FixedTimeslotTaskIF *thisSequence) {
   uint32_t length = thisSequence->getPeriodMs();
   static_cast<void>(length);
   thisSequence->addSlot(objects::RW1, length * 0, DeviceHandlerIF::PERFORM_OPERATION);
-  thisSequence->addSlot(objects::RW1, length * 0.2, DeviceHandlerIF::SEND_WRITE);
-  thisSequence->addSlot(objects::RW1, length * 0.5, DeviceHandlerIF::GET_WRITE);
-  thisSequence->addSlot(objects::RW1, length * 0.65, DeviceHandlerIF::SEND_READ);
-  thisSequence->addSlot(objects::RW1, length * 0.8, DeviceHandlerIF::GET_READ);
-
   thisSequence->addSlot(objects::RW2, length * 0, DeviceHandlerIF::PERFORM_OPERATION);
-  thisSequence->addSlot(objects::RW2, length * 0.2, DeviceHandlerIF::SEND_WRITE);
-  thisSequence->addSlot(objects::RW2, length * 0.5, DeviceHandlerIF::GET_WRITE);
-  thisSequence->addSlot(objects::RW2, length * 0.65, DeviceHandlerIF::SEND_READ);
-  thisSequence->addSlot(objects::RW2, length * 0.8, DeviceHandlerIF::GET_READ);
-
   thisSequence->addSlot(objects::RW3, length * 0, DeviceHandlerIF::PERFORM_OPERATION);
-  thisSequence->addSlot(objects::RW3, length * 0.2, DeviceHandlerIF::SEND_WRITE);
-  thisSequence->addSlot(objects::RW3, length * 0.5, DeviceHandlerIF::GET_WRITE);
-  thisSequence->addSlot(objects::RW3, length * 0.65, DeviceHandlerIF::SEND_READ);
-  thisSequence->addSlot(objects::RW3, length * 0.8, DeviceHandlerIF::GET_READ);
-
   thisSequence->addSlot(objects::RW4, length * 0, DeviceHandlerIF::PERFORM_OPERATION);
+
+  thisSequence->addSlot(objects::RW1, length * 0.2, DeviceHandlerIF::SEND_WRITE);
+  thisSequence->addSlot(objects::RW2, length * 0.2, DeviceHandlerIF::SEND_WRITE);
+  thisSequence->addSlot(objects::RW3, length * 0.2, DeviceHandlerIF::SEND_WRITE);
   thisSequence->addSlot(objects::RW4, length * 0.2, DeviceHandlerIF::SEND_WRITE);
-  thisSequence->addSlot(objects::RW4, length * 0.5, DeviceHandlerIF::GET_WRITE);
-  thisSequence->addSlot(objects::RW4, length * 0.65, DeviceHandlerIF::SEND_READ);
+
+  thisSequence->addSlot(objects::RW1, length * 0.8, DeviceHandlerIF::GET_WRITE);
+  thisSequence->addSlot(objects::RW2, length * 0.8, DeviceHandlerIF::GET_WRITE);
+  thisSequence->addSlot(objects::RW3, length * 0.8, DeviceHandlerIF::GET_WRITE);
+  thisSequence->addSlot(objects::RW4, length * 0.8, DeviceHandlerIF::GET_WRITE);
+
+  thisSequence->addSlot(objects::RW1, length * 0.8, DeviceHandlerIF::SEND_READ);
+  thisSequence->addSlot(objects::RW2, length * 0.8, DeviceHandlerIF::SEND_READ);
+  thisSequence->addSlot(objects::RW3, length * 0.8, DeviceHandlerIF::SEND_READ);
+  thisSequence->addSlot(objects::RW4, length * 0.8, DeviceHandlerIF::SEND_READ);
+
+  thisSequence->addSlot(objects::RW1, length * 0.8, DeviceHandlerIF::GET_READ);
+  thisSequence->addSlot(objects::RW2, length * 0.8, DeviceHandlerIF::GET_READ);
+  thisSequence->addSlot(objects::RW3, length * 0.8, DeviceHandlerIF::GET_READ);
   thisSequence->addSlot(objects::RW4, length * 0.8, DeviceHandlerIF::GET_READ);
   return thisSequence->checkSequence();
 }