I don't use the DDave mod. I love the option of the control of placing the tip as far in as I choose. That's one of the huge advantages (to me) over most other models out there (that use a tactile switch). If I am doing dip and sip, I don't put the VapCap all the way into the mouth of the SJK. However, on the first hit if the cap is cold, I put it all the way to the wall. You have total control over the click. Certainly no need for a special "cold cap" with the SJK heater. I have tried 5 of the available IH units so far. I got rid of all of them except the SJK.
Everyone can have a different opinion and the fan boys hate it. But if you buy one and don't like it, I'll buy it from you.
As for, "out of the box". I always cut the cheap plug off the end and put a nice plug on it. No soldering, just tighten 2 screws. And, I disconnect the fan also. The noise was annoying to me. Might not bother others. Make sure you get the 110volt model. they make a 110v and a 220v.