Can someone please help with a couple Questions about the TARTARUS PRO ?

I am considering buying the Tartarus Pro but, after watching some reviews, I have some questions, can someone please help me out with them to help me decide whether this may or may not be the right gaming keypad for me to buy ? The First one, is in regards to the ADJUSTABLE ACTUATION, in particular, I have seen some reviewers indicating how, regardless whether one might set the Secondary Actuation all the way to the bottom of 3.6 mm, somehow the key, when pressed, triggers the Secondary Actuation moreless around half way down while one is instead expecting the key to be pressed all the way to the button to trigger it.... This of course, may result in unwanted results while playing a game.... I am not sure whether this is a Software issue or a hardware one, does anyone know if it is a known issue and whether it is being taken care of ? The second concern, is in regards to the "tactile" feeling when pressing the keys... I have seen it mentioned in some reviews the lack of any tactile feeling when pressing the keys of the Tartarus Pro... is that so ? Is it something one gets used to over time using this keypad ? The other concern I have, is in regards to the Adjustable Actuation again. If one sets the Primary Actuation at the lowest setting possible, I believe 1.5 mm, does this make the keys so sensitive that one might risk, inadvertedly, hitting with one's own finger, not just the one key that one wants to press, but also the one right below it, thus resulting in not just 1 but 2 keys being pressed one after the other with consequential unwanted results in the game that one is playing ? Sure, one might well set the Primary Actuation at a deeper setting to reduce or avoid this risk but then, this would put the Primary and Secondary Actuation settings too close with one another which, I would imagine, would not be a good thing either.... So, I'd rather have the Primary Actuation set at 1.5 mm and the Secondary at 3.6 mm to make sure not to get them too close to one another but then, I would not want to either risk to trigger not only the one key that I want, but also the one below it.... The last concern that I have, is the noise that results from pressing the keys.... I like silent keyboards, primarily not to annoy others who may be around me with that continuous click click sound all the time, but also for myself, because that continuous click click results annoying also to me... How bad is the noise from pressing the keys of this particular keypad, as compared to membrane or mechanical or other types of keys ? In this regard, the Razer Orbweaver came with a more silent Stealth version, and Razer also has, if I remember correctly, a "Stealth" more silent version of the BlackWidow keyboard. Bottom line is, is there available as well a Stealth, more silent version for the Tartarus Pro keypad ? Thanks for the help !