You asked for an opinion and here it is; too much spring pressure during break in is a big deal and can contribute greatly to cam and lifter failure at this time. Sure, removing and later re-installing the inner springs is a big hassle, but nothing compared to the hassle of disassembling the whole engine to clean and remove metal filings from a failed cam. That being said, it really depends on the seat pressure, a stock or near stock spring shouldn't be much of an issue, but don't blame Comp if the cam fails and you didn't follow their procedure.
