I myself find that tucking in works better for me.. I'm 6'2" 240.
I cannot speak for the Tucker but I have made this and I can wear without a weapon no worries..
The V clips have a Velcro outer on them to attach to a layer of Velcro on the inside of your belt.. This way they are hard to see.. J clips are in my opinion the easiest one to take off.. I have just put C clips on my rig for the lac of being noticeable while tucked in and still save me from a new belt with Velcro..
I hope this helps..
God luck.