I concur with unworthy1 on this matter, for all the reasons stated. However to maintain the classic appearance with a -17 degree stem, make sure the fork column is long enough for the necessary stack of spacers to achieve the desired stem height.

In these cases, I always leave the column at maximum length and start out with lots of spacers and a high stem. I gradually remove spacers from underneath the stem and put them on top, until I find the correct height. Only then do you trim the column. It may look geeky with the column protruding above the stem, but it's better than cutting the column too short and having to resort to a angled stem.