cheez
Did you notice any noticeable difference when you moved from dual booting to single boot?
no, but to be honest I did not use the 32 bit installation a whole lot - that was more of a fall-back option and a mean to test if some issues were related to the mix of 32 + 64 bit plugs.
for almost a year everything on my system that I really use is 64bit (I only have a few minor things like fantom control remaining as 32 bit, but I rarely use that) ... and since monthly updates got so reliable that I update my system more often than the previous twice a year interval, it made no point to keep doing that for a dual boot ...