I am i the process of digging my pond and I have a quick question. My pond is 12 foot long at the longest point, an 7 foot wide at the widest. I laid a 16 foot 2x4 across the 12 foot length and I came up a little shy of level. Looks like if I build up the low side about an inch, i'd be good. So my question is........do you guys and gals find it easier/ better to build the low side up, or dig the high side down?