Dell XPS 15 Tapping Feature too Sensitive

[madron]

I have been working with Dell for over a month in efforts to resolve issue with Synaptics Touch pad Driver V7.4 on my second XPS 15 Laptop. I am advised the touch pad hardware is manufactured by Dell not Synaptics. The tapping feature is extremely sensitive and causes inadvertent selection while moving the cursor across screen. The fundamental problem is that there is no perceived difference in the sensitivity of the tapping feature between the left most "Light Touch" and the right most "Heavy Touch" in the Touch Sensitivity Dialog Box accessed under the settings for Pointing Sensitivity. Has anyone else had this experience and found a solution other than disabling the Tapping Feature?

[Skull One]

I cannot really help but I have some suggestions.
First, are you sure you are using the synaptics driver, and not evdev? Check in the X log file /var/log/Xorg.0.log

You can access synaptics options using synclient. Could you report your current configuration?

synclient -l

Then, try to change the sensitivity values. For instance, on my laptop I have "FingerHigh = 30"
If I change the value to 50 with

synclient FingerHigh=50

the tapping is less sensitive. (For the options, look at 'man synaptics').
Well, this is all I can tell...