The third and real downside is that the bike won't be able to corner as well or be as stable at slow speeds.
Hmm... most folks seem to agree that lowering the front end a bit actually improves handling. If the front and rear ends are lowered by the same amount, and that amount does not cause interference when at full suspension compression, how is handling effected (other than ground clearance)?
The good news is that for less than $50 you can lower this bike. And for $0 you can raise it back up again, all with very little effort. Lower it to gain confidence. Raise it back up if and when you are ready to.
2013 Tiger Explorer 1200
2009 DL650 ABS
2004 Honda ST1300