Met with Stephen Glenn - Customer Service, email: stephen @ sightron.com, tel: +1 919 562 3000, from Sightron at the IWA show...who confirms they do not like/want to re-parallax these scopes below 13 yards...otherwise it causes 'issues'.
I had stopped by to quickly find out their MINIMUM parallax (was thinking of Falcon T50, Big Nikko III, and March as a comparison, and was hoping these guys could be another competitor - ie: as low as 10 or 8 yards minimum parallax).
Sadly, Sightron is is no longer in my potential shopping basket, and I will have to look & get info. from VORTEX.
PS: 13 yards is good enough...ie: for plinking , target shooting, BR, etc...but thinking for FT or any targets at 10 yards...forget this then...