Well San...splitting does take time no doubt about that(i prefer Hj Split...which is fast enough as compared to winrar)...i just post 25-30 videos per day..and i look for size...i almost all the time choose size above 450 mb..with fileserve bitshare and freakshare on top...and at bottom i keep HF with either 250mb sized parts or 200parts...so it will be around 3 parts...

And also the order of placing the hosts matter..i have obserevd that...the one on top gets the max no of download almost all days