I did not drop my Titan but had a similar problem. After cleaning the contacts with Deoxit and re-lubed with Nyogel it started working normally. I think the light came with too much silicone grease.
Just received my Titan-A and I'm quite disappointed. :( The tint is puke green and other batteries are extremely tight (alkaline, L92). I was very excited about this light and expected more from Surefire. Honestly I haven't seen a tint this bad in years. Hopefully they'll come out with an...
Tint issues aside, its a great light. EDC pocket carry, nightlight, book light, etc. And unlike my SC51w it has not turned on in my pocket. When the tint issues improve I plan on ordering another.
A bit disappointed with the tint on my SC52w. Too much green but overall it's a nice light. I'm also very spoiled by my Malkoff 219. 219s are tint perfection IMO.
Are you using Alkaline or Eneloop AA? On Eneloops my M61NLL starts bright but dims quickly after 30min to 1hour. Anyone else have this experience with Eneloops?