I am a landscaper and love me BX25. It impresses me with its power everyday. But I need to see if anyone has some advise for a post hole digger. I am going to be planting 400 trees later next month. I will need a 18" hole about 18" deep for the root ball. Will the BX with a LP PD15 handle a 18" auger at that depth? I know the 12" is the biggest spec for the BX, but since I'm only going down 18" will it be okay? trying to avoid renting a skid steer if my BX will handle it. Thanks