So can a Laserpointer.
Too bad, that I can’t see anything with that 
There’s a nice comparsion thread here: There is no substantial gain in throw going from dedomed XP-G2 to dedomed XP-E2
The XP-E2 makes a thinner beam but with less brightness than the XP-G2, which makes the XP-G2 the better choice.
I don’t have the Jacob A60 - but 40 other lights, most with XM-L/2.
I have the Courui with a XM-L2@4.5A, the Yezl Y3 (stock) and a few other throwers (I like flooders more), I don’t think that a XR-E light would f*ck the Courui up 
And I don’t whink that OP would be happy about a light only half as bright as his current one 