;)well guys,
firstly we do not do houses!we only do comercial,we use the backflip on car showrooms etc,they work great you must have good blades in them,and how I became fast,when I was just 11 years old,I did boxing my hands are very fast,I then went at the age of 18 years into karate,then left for some years,since 1999
I trained and took my son and took my blackbelt,and I helped my son take his too,then I was teaching for quite a while,it all comes down to the left hand can do things while the right hand,can do another,this is where the karate comes in play,there are 3 windows as you know,there are just a certain amount of moves you have to do,any more moves is just no good,the world record is more complex then it looks,your hands are doing one thing,your legs are doing somthing else,its the karate that has improved me no end,coardination,mind and body together,so to all the guys and girls that have never had a go at this,please try and you will know where I am coming from,you have to clean each window and move at the same time,in under 3 seconds,it has taken me 4 years to break 9.91 seconds,
I hope this answers some of your questions,
regards
Terry..