As much as I appreciate the agony and irritation of having systems "go down" - there are so many variables involved that it's tough for anyone to guarnantee anything. As I said in an earlier note here, I wish I could charge cox cable everytime they went down for 1 minute or so (or any provider, for any reason). Lost "possible" income is going to happen every once in a while (I did comment that 2 straight days is ridiculous), but this thread brings to mind something that my brother and I have smiled about over the years........
Newer traders may have a couple of positions on, watching intently, and kick the cord, or the T-1 burps or something makes the screen go blank for a second or two....and they immediately holler out "oh no, please close all my postions, quick"....I smile at them and say...."Hmmm? 2 seconds ago you loved these positions, and now you want out immediately, hmmm? ...at least now you have a 50/50 chance of being right, which might be better than when you put them on in the first place"....(smoe minor attempt at humoring them, but it seems to work.
In all seriousness now, redundancy is primary...controlling losses is mandatory, but "missed opportunities" are far less of a concern.
Use the best services that you can, and go for it.
Don