I have been lusting for the Alpha for more than 5 years and decided to finally give in to temptation and get the Titanium version. The machining is near flawless, the specs are impressive and CP Ti is even more special than the 6/4 Ti found on the Delta. Programming is really easy and I love the ability to switch between the two groups within couple of seconds. In group 1 (tactical) I only have one mode (100%) plus Strobe for double click, the second mode has 4 modes (from 1 lm to 75%) including beacon (with hybrid memory). Nichia 519A 4000K has great color rendering and 95+ CRI, near perfect LED. Ledil "Boom" reflector rounds up the light with a perfect balanced beam between flood and throw. If you can afford the Alpha (in any metal), get one!
P.S. I also got a Delta Titanium
Part of my humble collection: