Has anybody tried out the streching aid by the name of "Splitflex"? I know alot of people think these things are a waste of money as anyone can stretch without an aid/machine, but nonetheless I ordered one to give it a whirl. Searching on here there is nothing mentioned about them..... Here's the link... UK www.splitflex.co.uk US www.splitflex.com I'll let you know how it goes.