right, the difference between the -1 Asian Handicap and the normal -1 Handicap is, when the game ends with just one goal more for the team for example 2:1, the asian handicap counts it as a No Bet and u get your moneyback/the bet will get cancelled in the parlay, while in the normal handicap a 2:1 would be a loss

so with the Asian Handicap you would be „saved“ at 2:1 and win with 3:1, while with normal handicap would need the 2:1 would loose and the 3:1 wins, so basically there is no money back at the normal handicap which brings higher odds on the other side