I´ve had nearly only Mack Snows this year only a few Bells and 3 Raptors and I have had no single gecko(okay maybe 1 raptor) that came out with the wrong gender
A good friend was telling me that the macks were uncontrollable in temp sexing this will make a big difference for this coming breeding season.Thanks Randy
Not uncontrollable, but slightly less predictable than the average leo project. We are taking leo genetics to the moon this year. Next year, I'm half way expecting a brontosaurus to appear in my incubator
I have heard the same, that Macks don't follow the general incubation rules, as people have incubated for females and still got a lot of males. We ourselves have nothing but males that we can visually sex thus far. We sold one gecko, who was our only female, and she was incubated at 88 degrees! So I don't know. We were incubating for males at first, but lowered the temps. gradually and are down to 81-82 degrees now... still no signs of any females, but we have 2 or 3 that we hope will end up being female.
If anything, I'd assume it to be less predictable when combined with Raptor. The further you take a line from the "wild-type" genetic--the less the 'traditional' rules apply...and Raptors are about as far from the wild-type as we've yet seen in a line...they are even perpendicular to the banded wild-types
Out of the 4 Mack Snow Trempers (het Blizzard) that I have hatched so far this year, only 1 of them was not the sex it was incubated for. 2 were incubated for male (clutchmates) and have been definitely visually sexed as so. 2 were incubated for female (different clutches), with 1 being clearly male (ironically, the clutchmate, a Tremper het Blizzard ended up, indeed, being visually sexed as female) and 1 clearly female at this point. The males were incubated at 88.5 degrees and the females at 81.
ETA: I also had a clutch of Giant Tremper Albino het Raptors incubated for female turn out to both be male this year, as well.