How it works
Pick one match, stack outcomes, take one price. The catch is correlation: a striker scoring makes the over likelier, and the pricing model knows those relationships better than any bettor. The quoted price bakes the correlation in — plus margin hidden where it's hardest to see. SGPs turned every match into a build-your-own lottery ticket; know what the ticket costs.
SGPs and bonus bets
Most books allow bonus bets on SGPs, and given the margins, that's the right money for them: winnings are real, the stake was never yours. BetMGM's UK cousin literally hands out builder-only free bets; expect US structures to keep leaning the same way.
The mistake everyone makes
Stacking obviously-correlated legs and calling it value — team to win, striker to score, over the total. Those travel together and the model priced them together; you're not outsmarting it, you're paying its favorite toll. SGPs are for expressing one match's story, not for beating the algorithm that wrote the odds.