i have recently bought a scroll saw, it is a cheap one, a Wen. but it is good to learn on. i got it in December and have fallen in love! i found intarsia and away i went. now for questions... first, let me say that everything i know is from google and jumping in head first. 1) tightening the blade - how tight is tight? i see lots of stuff on it but i am tone deaf. is there a way to know i have it right without having to hear a pluck of the blade? i am guessing i have the tension wrong on the blade because i havent broken blades! 2) everything i see says dont push, but if i dont push some it does nothing but make noise... so i push, then after a bit i find i am pushing a lot harder, i am guessing this is a blade gone dull, but if that is the case i am using blades at a remerkable rate (a new one every 10 to 15 min of actual cutting) 3) cutting hardwood, and i mean hard hardwood (Satin, Redheart, orangeheart and others) well... at least for me it is hard! at this point, i can cut things, but have no idea if i am right. i go very slow... very very very very slow. has to be something wrong! 4) pinless blades and cutting the center out of something. i drill a hole, but the blade through then spend forever getting the thingy on the bottom because i cant see or touch it, i have to do it like fishing with a blindfold on. 5) i am using blades recommended by Judy Gale Roberts. the sizes for what i am doing are 3, 5, 7 and occasionally some others, but these are the ones i use the most. is there another economical blade, since i go through an inordinate amount? i go on Amazon and look, but the size info is not 1,3,5 etc, it is some mm measurement. the JGR blades are $3.50 for a dozen but i have to pay shipping. if i could find what i need on Amazon i have prime and that is free shipping. then last... and this is a weird question... but i use some aromatic cedar, when planing, cutting, shaping and sanding it smells SOOOOOO good! is there a finish that would let the smell stay and still protect the project?