I apologize if this was covered elsewhere, however:

I'm considering getting a P7 torch on my handlebars, something like this MTE:
http://www.dealextreme.com/details.dx/sku.12060

I want to see better at night, and I want to be seen in the day. If you own this light or another DX P7, can you tell me:

1) Do you feel that you need strobe mode in order to be seen during the day? (Have you actually looked at or filmed your bike from 100 ft?)

2) Do you feel the strobe risks annoying motorists in daylight, for example if you are stopped at a light and you pull up behind a car with your light in their mirror? (For some reason no one mentions how fast the strobe repeats, 3 Hz is probably attention grabbing whereas 20 Hz might be painfully obnoxious.)

Thanks for your help.