I will be at the bench with my digital milti-meter playing electronics technician this weekend, following the advice of Bev Evans. I prefer the standard flash rate and signals that stand out a bit - if you get them too close to another source of light (headlamp, taillamp) they get washed out and are more difficult for drivers to see (assuming they are actually looking), which is why I don't like the integrated rear tail/turn units. I think the stock front LED signals work great - it's the mirrors that suck. Mine just flop down at the first hint of a bump or vibration: great view of my wrists, but not much else. I probably made a mistake buying the Synchro signal units with integrated resistors, as they likely don't need them (the existing signals are already LED). Motovation's listing is misleading, as the signals are listed under "bike specific" for the 2010 Brutale, and noted to "work with all Brutale models", which is clearly not so... I'll get it worked out, and will post my final solution for those who may run into the same situation. The Synchro's may end up on my 72 Norton or my 74 Laverda - maybe the '57 Featherlastic that's coming together slowly - yes I like older bikes too!