Powertap pedal power meter questions

[dgasmd]

I haven't considered getting a new power meter in a very long time, but want something very easy to swap from bike to bike regardless of cranks and wheels. These seem like a winner.

1. Reviews/opinions?
2. How heavy are they? It is weight weenies after!!
3. Do they come with any software or app for data logging and review?
4. Do they come with some form of cycling computer to see output on the bike or do they have to be bought separate?
5. Is the separate R vs L that much of a improvement s a single power output number? I see the benefits, but is it a realistic positive gain?

Thanks,
dgasmd

[claus]

Did you read these already?

http://www.dcrainmaker.com/2015/05/powe ... joule.html
http://www.dcrainmaker.com/2015/08/powe ... eview.html

[dgasmd]

No, but I will now. Thanks.

[jekyll man]

Follow a few of the links from here, and you'll get a picture of their quality:

http://www.timetriallingforum.co.uk/ind ... -hardware/