ive had a sterling for about 5 years now. and i just bought an 89 stingray 5. on the sterling the three postion switch gives 3 distinctive sounds. parellel,singlecoil,and series are all significantly different sounding. but on the stingray 5 the postion that should be parallel sounds like series and the other two positions sound exactly the same and sound like the single coil mode on the sterling. i took off the pickguard to see if anything looked fishy but all the soldering looked factory. so, my question is that if anyone knows if the electronics were different in the 80's. ive played newer 5's and the electronics sound just like the sterling.