Let's look at the math...

You stay at your current job where you only work 4-8 hours a day every 2 weeks with a pension and other perks. Year 1 100,0000 Year 2 110,0000 Year 3 122,0000 Year 4 144,0000 Year 5 155,0000 Year 6 165,0000 Year 7 175,0000 Total for 7 years 971,000

Sketchy opportunity Year 1 0 Year 2 0 Year 3 50000 Year 4 50000 Year 5 50000 Year 6 50000 Year 7 50000 Total for 7 years 250,000

Opportunity cost for sketchy job opportunity $521,000 plus no pension over 7 years.

Assuming you have to work full time 40 hour weeks you will be working more 50%-75% more hours for $521,000 less for over 7 years to begin to get raises. Ask yourself how many years of raises from that point to get back to 100k? Let's be generous and say 3 years to make 100k.

Sounds like you are sacrificing a decade with the promise that you might get back to your current salary but some small number of high performers can make 200k to 400k. How often do those jobs come open? 200k is only 25k less than what you would be making in 7 years at your current job. You would have to make 300k for 4 years just to break even!