@alexmobile yes... don't use in the trial, they limit bandwidth used... Allow as many accounts for whatever clouds you use (the only limit they have is alphabethic letters for the drives xD)
You can plot it before and only map the network with NetDrive on the end it doesn't matter...
Yes you can plot while you are mining no problem!
PLOT THE CLOUD DRIVE THEN UPLOAD THE FILE TO THE CLOUD means to plot for your local drive (then you should optimize the plot! I haven't done and may have to upload the files again...) and then upload it for the cloud via browser (via netdrive they block the file size at 10GB as long as the app) and this will take a while(maybe 2-3 days for the 5 drives).
Plotting directly you should forget about it... i have done 1 plot of 5 GB directly for my personal Google Drive and took almost a day, when it writes on the cloud your speed is real bad...
@crutsy I've try'd last night and have a lot of PS and i will make a post of it in next hours about the best config i get with my 13 Google Drives...
P.S.: @haitch words were more educational that mine... sorry xD