What is the most efficient way to remove existing 3/4" T&G hardwood floors? I have watched videos where guys cut perpendicularly to floor approximately 3' apart and use a hammer and crow bar. I have seen some tools that appear to make the job a lot easier (48" long pry/pop up flooring tool). Certainly those tools look great on websites, but do they work and which brands would you recommend? What is the best method and recommended tools?