I have the Fenix BC30, which as the same LED and reflector design as the BT30R but with a self contained 18650 battery setup whereas the BT30R has a smaller "headlamp" and a separate battery pack.

The throw is not as good as the BT20 but the pattern is wider and more even. Very broad.

The 200 lumen setting is not sufficient for my needs whereas the next power setting of 500 lumens is overkill for my needs. I really like the 300 lumen setting of the BT20. With top of the line batteries (Panasonic), the 500 lumen output should last 6 hours.

The weight with batteries and overall size makes handlebar mounting a challenge if i want to run either a handlebar bag or aerobars. With a mounting knob on the fork, the overall effect feels unstable. On the bars, it is a fine light. My BC30 sits collecting dust along with Magicshines, etc.