Only advantages from what I can see. If anything it's insurance against a fried decoder since it can take more amps before it fries. Thats only a good thing in my book.
Rio Grande. The Action Road - Focus 1977-1983
The only disadvantage is that the higher amp decoder may be slightly larger in size, if space is a problem.
There is no disadvantage to using a decoder with a higher amp rating. A higher amp rating decoder will provide you with a little more insurance against an accidental amp surge.
Joe
If a loco draws less than 1 amp at peak, is there a disadvantage to using a decoder with a 1.25-1.5 amp rating vs. one that has only a 1 amp rating?
Will the higher-rated decoder work fine when the power supply's output is only 1 amp?
This car stops at ALL railroad crossings!