Thanks for the input Eric.

Tamiya states 30 meters and I've heard the 100' claim, but I've never experienced either with any of my TBUs due to physical constraints. The longest distance I've used them indoors is 30 feet and all battles outside have been on uneven terrain, so I can't remember anything longer than about 45'.

I plan on taking both this and a TBU to the local school gym to test range inside and to either the local roller hockey rink or a tennis court to test outside. I took a spare Tamiya DMD/MFU and rigged a 'shooting platform' using a kit supplied emitter tube for consistency since all my tanks have the emitters buried in the mantlets.

In current form, the slope defense kicks in about 25 degrees off horizontal, both up or down, I have yet to test a TBU.

Component-wise, everything meets or exceeds Tamiya (with brighter LEDs) so I don't expect a dropoff in performance. Most efforts have been concentrating on toning down to Tamiya.

That said, this isn't an exact copy of a TBU. I do understand that anything different will face scepticism and scrutiny, so as of now I only plan on making a bunch for myself and NEAD to mess around with.