I could never come to terms with the (essential) "hip flick" - if thats an
issue, think about "ramming / lifting / forcing" your knee "thro the deck"
as you progress thro the roll.

Hah! I almost never call it a hip flick - I usually say lift you
right/ left knee... but I thought that using that term here would
result in a flood of abuse :-)
http://101waystocookabeaver.blogspot.com