Not sure if any of the Private Lands locations offer a standby, especially since there is no Permit fee involved. The only places I would attempt a standby are not within a 6 hour one way drive and IMO not worth the effort or expense on a gamble, now that the 2nd Drawing has about dried up those opportunities as it was designed to do. Having said that, I'll work the phones on family and friends 1st then hit the more desirable TPW locations after that that are within a reasonable drive time.
The 9 hours one way to Garner couple years back cured that idea...when even the locals from around San Antonio won't make the trip that tells you all you need to know about the Hunt not selling out of Permits in the drawings OR to any Standby's either....and probably why the the bio guys at Garner have reduced the number of Hunts scheduled...which takes the SP out of the Campers Access available time, since IMO the the SP is run to maximize Campers $$'s.
Drew a Javy Hunt at Choke Canyon one time and was blown away with the #'s of Bexar County guys who showed up in droves for a Standby spot...and all most all of them scored a Permit...and lots of hogs and a few Javy's too were taken...access to the hogs was the big attraction.
My old "where to eat while traveling" Rules of the Road of avoiding any place with an empty parking lot apply here too.
"These are the times that try men's soul's"...Thomas Paine
"Those who fail to learn from History are doomed to repeat it" ....Santayana
"There's a sucker born every minute" P.T. Barnum, on why he always had customers to see the sideshow features.