Welcome to the Jayco forums.
The X23B is a nice HTT, lot of room for it's size and the small slide makes a big difference. Here is a little overview of what weights I feel you should be considering:
The UVW of 4,200lbs is just a published weight, not the actual "sticker ship weight", so it could be shipped at a little higher weight. The ship weight doesn't include the dealer installed battery or any dealer options, so figure about 200lbs on top off the UVW 4,200lbs = 4,400lbs on the dealer's lot waiting for you to pick-up. Now, the GVWR is 4,950lbs minus the 4,400lbs leaves you with 550lbs for your cargo & "stuff". IMO 550lbs will be used up fast, and this isn't including any fluids in the tanks.
IMO you should figure that you will be towing this TT at it's GVWR of 4,950lbs.. The loaded tongue weight (10%-15% of the GVWR) and using the mid-range of 13% = 643lbs for a loaded tongue weight. Now check for any WD tongue weight limits on your TV, and also check your TV's receiver weight limits in WD mode.
So the two key weights that have to be confirmed against all your TV's weight limits, and the TV's receiver's limits are: TT loaded weight of 4,950lbs and a loaded tongue weight of 643lbs..
Your TV has a GVWR weight value (?), it would be helpful to know what the actual weight of your TV would be under "simulated" loaded conditions (ready to camp). A CAT scale weigh of your TV with full gas, a passenger, and "stuff" in the bed will give you a TV loaded weight..., add to this weight another 643lbs (the HTT loaded tongue weight), 50lbs for the WDH, and confirm that this grand total is below your TV's GVWR.
Also, keep in mind that your TV's tow rating of 6,100lbs is based on a 150lb driver and a full tank of gas (no passengers, cargo, TV options, etc.), so as you add the extras the 6,100lb rating drops.
Not knowing all your TV weight limit specifications, I would take a guess that you "may" be pushing the limits on your Suzuki. Again, more TV info may provide a better picture.
Just food for thought, and hope this gives you little insight on what to look out for.
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