I don't have a 125, but doesn't it allow you to select step sizes manually?
No, it does not allow you to change step size, they are locked in to the firmware. If you don't own a BC125AT and clearly aren't familiar with it, what exactly was the point of answering this thread with a question?
airwolfbell222 - Just be glad the reverse isn't true, that it's not locked into 25 kHz steps where 12.5 kHz is used. Sure, it takes longer to search that band, but at least it does cover all of the 25 kHz frequencies on-center.
You might want to setup custom search ranges if there are certain portions of that band you care about more than others, that will speed up the search process a bit.