re: cleaning 1200s 40 degrees.. a lil fabric softner.. dont bother with any extra spin. iron when wet.
by puttin the height of the tonearm up, it allows the needles to dig into the grooves better, good for scratching, bad for vinyl
the arm should be flat, like level with the deck kind of thing..so it depends what carts youve got on how its set up..... the needle should be set as light as possible, so u can still cue and it doesnt fly off, but still quite light....
if they are still jumpy, adjust the weight at the back of the tonearm..... if they are still jumpy....errr....i dunno?