I'm looking to buy a new stem. My current stem is 100mm 7degree +-. I want a shorter stem as a feel stretched out and don't want to bring the saddle forward more than it currently is. So I'm looking for a 90mm as I think that 10mm will make the neccessary difference. Thing is. I can't find a 7 degree +- one. I can see a 6 degree +- and an 8 degree +-. Will 1 degree make any difference? My current stem is upside down as in the 7 degees is downwards and not upwards. I suppose if anything an 8 degree +- would do....as long it's 90mm. Plus I have 31.8mm bars and the usual 1,1/8 steerer tube. I need it to be light and strong too. Not asking too much am I?