The problem I have with 512 diff is that my internet connection is not stable enough for my 280MH when using my pc and 420MH when away
I need about 2 minutes to work on a 512 diff, but if my internet is not stable I loose those shares in the ashes.
When using vardiff its OK because I did not loose that much high rate shares. So the variance for me is not balanced with the time, but its going down with the time. I got random disconnects and will lose high value shares.
I cant fix my internet connection as the whole family is using the Internet, and also the ISP provider is kinda sucky.
Yet again, this isn't true. If you lost 1% of your shares originally due to disconnects, you'll again lose 1% of your shares at 512 difficulty.