theory11 — Magic Tricks & the World's Finest Playing Cards

Broadside Practice

Looks good 5/5

But this move is pretty pointless to use as a control, its angle sensitive. Why not use a sidesteal to the bottom? Its alot less angly.
 
Do you mean your left or right thumb? I'm assuming you meant your right, but our left. In any case, I can't do the move either and am still practising, so any tips here would be welcomed by me also :)
 
Since I don't own the book, I don't know the move, but it looks great to me. I'll be hopefully investing in By Forces Unseen soon in the near future.