Had the same problem especially on cloudy days so I recently switched to flat profile. Basically you choose the color profile User def. 1 and drop the contrast around -3 (some even go to -4) and the saturation to -2. Your shots will be flatter and you'll need to color correct them in post-production (if you're not comfortable color-correcting you might wanna check a few tutorial before shooting flat) but you'll catch a lot more details than if you over expose in the standard profile or any of the presets .
Here's my latest edit (and first try shooting flat profile), as you can see the details are not bad at all for a t3i and 720p.