Olight M20S-X vs 4Sevens Maelstrom X7

Greetings all, Long time lurker taking a plunge into the LED lights.

I am looking for a mountable LED weapon light. After a couple weeks of searching this and other forums I have narrowed my choices down to the Olight M20S-X and 4Sevens Maelstrom X7. Price is about the same, but I just can't decide…

I don't have any first hand experience with either brand. Nor am I close to a dealer that sells them to try them out and compare, so I will have to buy it blind and hope for the best.
Price is about the same, but I need opinions on ruggedness, beam quality, and your general experience and opinions of these lights.
The Specs are below but they seem very comparable...

4Sevens Maelstrom X7
Price: $119
Dimensions

• Length: 6.0 in
• Body Diameter: 1.0 in
• Head Diameter: 1.5 in
• Weight (w/o batteries): 5.1 oz

Power Source

• Power: (1) 18650 or (2) CR123A batteries (18650 button-top cells only - e.g., only our 2200mAh 18650 works)
• Operating Range: 2.7V~8.4V

Typical Output and Runtimes

• Moonlight: 0.3 lumens, 6 days
• Low: 30 lumens, 21 hours
• Medium: 270 lumens, 2.8 hours
• High: 480 lumens, 1.3 hours
• Strobe (10hz, 480 lumens): 2.5 hours
• S.O.S.: 4.5 hours
• Beacon: 12 hours

Olight M20S-X
$94.95

• LED: Super Bright Cree XM-L
• Three Output Levels+Strobe
• Body: Indestructable Type III Hard Anodized Aluminum for Superior Scratch Resistance
• Mil-spec: MIL-STD-810F
• Integrated Battery Polarity Protection
• Rated IPX-8 Water Resistant
• Included Accessories:
  • 2 x CR123A Batteries (Batteries Included!)
  • Battery Magazine (Prevents CR123A Batteries From Rattling)
  • 2x Spare O-Rings
  • White Diffuser
  • Lanyard
  • Holster

Specifications:

Oh, and I can't buy both, so don't push me in that direction....LOL