They look a good idea - the lamps can swivel to the clamp so they'll work well on the GSA tank crash bar.
The OEM lamps are needed with OEM halogen headlights but can be OTT with better headlights. When you have a good headlight, long range spots can be used to support the really not very good main beam. Too much light in the foreground can make it feel like you are riding into a wall of ink.