Hi - does anyone like and/or use any of the Martelli TEMPLATES? They will be onsale this Thurs June 6th for 50% off (Martelli Redline sale) which is a great deal - just wanting to know if anyone actually uses them. They're so different than the "usual" templates - usual ones are acrylic; the Martelli's are black (can't see thru them) and I've never seen/used this kind of template. The videos look great - they are non-slip and you can move your fabric around for cutting on all edges/sides without lifting the template. Looking at getting the Double Wedding Ring template and the Circles/Drunken Path pattern/template. Would love your input!