Could anybody please advise me on meaningful differences between these two models? I am considering buying a used B3030 with cab that is currently available but I noticed on the current thread re cab noise in the B3030 that someone said that this problem had been improved on in the B3000. I already have a B3030 (without cab), and before I 'double-down' and buy a second 3030, I'd like to know if there is enough of an improvement with the B3000 so that I shouldn't buy another 3030 but rather look for a B3000. Thanks