Davey, You said you can put your stylus into the lead in groove and there is dead silence. All I am saying is that should be the case for any decent turntable at normal listening levels, because one ought not to hear bearing noise (even though bearing noise is undoubtedly present at some very low level below the signal) with any decent turntable. And of course the Linn is much better than "decent".
In regard to Mylogic's subsequent comment, some LPs and some cartridges are more prone than others to pick up what some call "pre-groove echo". Pre-groove echo is often audible at a very low level when the stylus is seemingly between cuts but is really entering into the grooves for the next cut. So that could seem like you are hearing "information" between grooves.