Screenshot intervals?

For a long time I was convinced that the screenshots we get with each trailer are done automatically at LP at the same interval.
i.e. 200 screenshots for a 60min scene would mean that every 18 secs there's a screenshot.
Thats useful if you wanna check more or less how much DP, DVP or DAP footage you'll get.
First time I think this didnt work anymore for me at least was Daphne Klydes DAPbreakin' for gonzo.
(this scene: https://www.legalporno.com/watch/32304/_sexy_super_sluts_inga_devil_vs_daphne_klyde_4on2_dap_ur_face_off_sz1665)
DAP footage turned out to be much longer than the screenshots would imply.
Still generally basica time assessment rule between every screenshot seemed usually to work more or less still.
But todays Selvaggia scene in the wet version has shaken my trust in those screenshot intervals totally, because pissing can't last for several minutes really I'd guess:
https://www.legalporno.com/watch/37556/fucking_wet_beer_festival_with_selvaggia_balls_deep_anal_dap_gapes_pee_drink_swallow_gio953/screenshots#screenshots
Really 4min of doggy anal fucking while cute Selvaggia is pissed on?
So may I ask has somebody a clue how these screenshots are done?
Luid or Giorgio maybe?

i.e. 200 screenshots for a 60min scene would mean that every 18 secs there's a screenshot.
Thats useful if you wanna check more or less how much DP, DVP or DAP footage you'll get.
First time I think this didnt work anymore for me at least was Daphne Klydes DAPbreakin' for gonzo.
(this scene: https://www.legalporno.com/watch/32304/_sexy_super_sluts_inga_devil_vs_daphne_klyde_4on2_dap_ur_face_off_sz1665)
DAP footage turned out to be much longer than the screenshots would imply.
Still generally basica time assessment rule between every screenshot seemed usually to work more or less still.
But todays Selvaggia scene in the wet version has shaken my trust in those screenshot intervals totally, because pissing can't last for several minutes really I'd guess:
https://www.legalporno.com/watch/37556/fucking_wet_beer_festival_with_selvaggia_balls_deep_anal_dap_gapes_pee_drink_swallow_gio953/screenshots#screenshots
Really 4min of doggy anal fucking while cute Selvaggia is pissed on?


So may I ask has somebody a clue how these screenshots are done?
Luid or Giorgio maybe?
