I need a few tips fro stand ups please

[urbs]

So I went out skating and starting carving hard and leaning weight forward (I know that much). Its just that whenever I get my back wheels to unhook, I get chucked off the board. I guess keeping my weight lower would help. Could you help a fellow skater out? thanks!

[Blix]

180 Powerslide

Powerslide help

http://www.silverfishlongboarding.co...ght=powerslide

powerslide help

http://www.silverfishlongboarding.co...ght=powerslide