Got the vacation jackpot tonight for the first time myself for a second I thought my machine's power went off since it blacks out for a few seconds...
Also, when I have 5x playfield scoring going and I get the triple jackpot it doesn't give me 5x 3 jackpots, it just gives 5x single jackpot. So not as rewarding as you may think... I usually just go for as many rafts as possible and then as much triple jackpots as possible. I managed to get 680,000,000 points in one multiball that way.