I got a bunch of differnt size pvc pipes I use all the time but they dont flex.so I 've been using heater hose and radiator hose with sticky paper on them but they arnt stiff enough for a lot of jobs.I've got at least two hundred bucks worth of dura blocks but this will be real handy for the unusual shapes you run into I can even put steel wire in the block so I can bend them and keep a contour.....Man ,I've used a crap load of that foam and never even thought of that....Thanks that'll keep me busy for a couple days...
