If you dont have your Lo and Med fuel trims as close to zero as possible, theres no way your dead time and global is correct. So basicly your WASTING YOUR TIME. With that being said, theres no possible way for your WOT or timing to be correct if the injector pulse width is wrong etc... which is achived by setting your trims up FIRST with a good global and dead time.
YOU HAVE TO GET YOUR LOW AND MED TRIM TO BE CLOSE TO ZERO before even attempting to tune WOT. This is done via the tuning guide link which you should have if your DSMLink is legit. It involves alot of long boring cruzes at the same rpm, pulling over and idling for 5 min, making adjustmets to the dead time till the lo and med are the same value, then once they are the same value, you adjust the global to bring them both up or down to as close to zero as possible. This cruzing is repeated over and over and over agian till your trims are good. 10 minute cruizes on the hwy, CONSTANT RPM and throttle, then idle for 5 min, read vales, make dead time adjustments, repeat cruize till your done.
Now, once that is done, then you can worry about timing and fuel. Its impossible to tune if your global and dead time are not set correctly and your global and dead time is set by doing the above. THERE IS NO SOLID FORMULA for dead time and global, every car is different, every setup is different, you just cant get around doing this first! Dont let anyone tell you different.
IGNORE your O2 readings, dont even faking log them. the only thing you should be watching at this point is the LO LTFT and the MED LTFT, turn everyting else off till you tune your cruze first!
All your sliders should be at ZERO when doing this, and if your using a MAFT, i highly suggest putting all the knobs to zero, even the base, and JUST use the DSMLnik. Sliders are only used once closed loop is tuned. (lo and med close as possible to zero) Use the sliders for WOT only, and you will most likely only be using the 4K and up sliders when doing this. Start lean, and add fuel till the knock goes away. I wouldnt worry too much about what the timing says.