I looked twice but still don't see confirmation of which Hyatt resort we're talking about. Is it indeed Mountain Lodge or is it Main Street? Big difference in pricing/value parameters.
At Main Street, the cheapest of the two, there are no studios available for week 7 and, as noted, week six is available:
Room Type: Saturday Sunday Monday Tuesday Wednesday Thursday Friday
Studio
Room Details
329.00 329.00 329.00 329.00 329.00 329.00 329.00
Total Price Per Room: 2303.00 USD 1
Book
Two Bedroom
Room Details
499.00 499.00 499.00 499.00 499.00 499.00 499.00
Total Price Per Room: 3493.00 USD 1
Week 7 does have a two-bedroom available for 629.00 per night, so, extrapolating, a studio would have a rental rate of 414.00 per night, similar to the 419.00/night I actually saw before availability disappeared.
Since there is no availability through Hyatt, this supports valuing the interval at or near the same price as Hyatt formally asked (and received) for the property. I'd have no problem asking 400.00/nt for that interval.
As support for this methodology, I routinely ask as much for summer weeks at NCV as Marriott does (when available) simply because they become unavailable through the hotel reservation portal. It's simple business supply and demand.
My strategy, assuming, like Marriott, Hyatt 'allows' owners to rent their personal ownerships (I'd do it anyway, ef them), would be to make request first exchange requests through SFX and, simultaneously, rent the week on Redweek. Also, follow your resorts results on eBay's rental portal and, as appropriate, consider that alternative. Maximize your flexibility *and* value. No one cares as much about your value as you do.
You already have a SFX membership so get that exchange request (or requests) in *now*. Push them, on the phone. Use the numbers you know to make your case. Don't be deterred. Push back. If you don't like their perspective, accept it and move on to other alternatives. The key is not to let anyone deter you from getting what you want. I get the sense that you're minimizing your ownerships. That's patently *wrong*. You have a great week at a wonderful resort in a desirable location. *Maximize* it!. Good luck!