For some guidance, in the Blacksburg area I've found the following uses for the available imagery:

- VBMP for primary work (newer, moderate resolution, lower tree blockage, needs alignment)
- Bing for details and alignment (older, very high resolution, higher tree blockage, well-aligned at high zooms)
- NAIP for very recent changes and cross-checking (newest, very low resolution, higher tree blockage, aligned)
- Esri Clarity for an additional cross-reference of older imagery (oldest, moderate to higher resolution, moderate tree blockage, needs alignment)
- Esri World as another datapoint to view change over time (older, low to moderate resolution, higher tree blockage, needs alignment)
- Mapbox for double-checking objects through tree cover and as a last-resort cross-reference datapoint (older, low resolution, lowest tree blockage, needs alignment)

To align VBMP (to Bing, which closely matches GPS traces and is well-aligned at high zooms), I use the following imagery offset: -0.67;0.82