Yea I agree that's very important!!!
WE NEED A FEATURE/FUNCTION COMPARISION OF THE LEADING SOLUTIONS.
Here is something I did long ago so it doesn't event cover Vtune, DataMaster and the software updater that come with Mastertune, but you should get the idea.
Function Mastertune SESPRT
Air Fuel Ratio yes yes
VE Front Cylinder yes yes
VE Rear Cylinder yes yes
Warmup Enrichment yes yes
Cranking Fuel yes yes
Closed Loop Bias Front Cyl. yes yes
Closed Loop Bias Rear Cyl. yes yes
Accel Enrichment yes yes
Decel Enleanment yes yes
Spark Advance Front Cyl. yes yes
Spark Advance Rear Cyl. yes yes
Idle RPM yes yes
IAC Warmup Steps yes yes
Engine Displacement yes yes
Injector Size yes yes
RPM Limit yes yes
Knock Control yes yes
EITMS yes yes
ACR yes yes
Active Exhaust yes yes
Active Intake yes yes
PE Air Fuel Ratio yes NO
PE Spark yes NO
Spark Temperature Correction yes NO
Closed Throttle Spark yes NO
Adaptive Knock Retard yes NO
IAC Crank to Run yes NO
IAC Crank Steps yes NO
Max Knock Retard yes NO
PE Mode yes NO
Primary Ratio yes NO
Speedometer Calibration yes NO
Backup original calibration yes NO
Reinstall original calibration yes NO
Dual bike units yes NO
Software Included yes NO
So like I said you get 1/2 the product when you buy the SESPT unit compared to Mastertune.