I have noticed that guides can be placed between pixel edges, so rather than snapping to the edge of a pixel you can place a guide line between a pixel, essentially a guideline can rest at say 10.5 pixels along a ruler. This however causes a problem when trying to snap to a guide. For example cropping and slices snap to the edges of pixels and are unable to snap to the guide line which is in the middle of a pixel, this is particulary annoying when using slices - if you are not careful two slices will overlap or worse not actually snap together leaving a pixel gap rendering the guides inaccurate. The same can be said for cropping which is unable to snap to the middle of a pixel, although only a small error, an error that can be rather annoying when you need your work to be deadly accurate. Any chance of amending the guidelines so that other items will accurately snap to them?