Replying to Level Bowl For Video Tripod Necessary?

Is it worthwhile to get a bowl level for a video tripod while shooting skiing? I think a lot of times you will be on a pretty sloped area and I think a 75mm bowl can only adjust by 15 degrees. Right now I have a 3lb carbon fiber Induro tripod and 701HDV head and I have to adjust the legs individually to level. I have a Canon 7D and I carry all my gear with a Burton Zoom backpack.

Do you think it's worth adding 3-6lbs and double the folded size in order to have a level bowl for shooting skiing? I do a lot of hiking as well.

Current setup:

Induro CT-114
2.8 lbs
19" folded length
carbon
no bowl

Possibilities:

Manfrotto 547B
One stage w/ midspreader
33" folded length
5.1lbs
aluminum
60mm bowl

Manfrotto 351MVB
Two stage
37" folded length
8lbs
aluminum
75mm bowl

Manfrotto 755XB
25" folded length
5.5lbs
carbon
50mm bowl