Thanks Roger and Katelyn

Recording... My dark secret is I'm using modelling - not a real amp

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So my recording chain is Guitar ===> Line6 POD HD500 ====> Roland Tricapture (USB Audio Interface) ====> Logic Pro (Daw).
Regarding the POD HD500 - I just use a basic amp emulation and then I add a bit of equalisation and reverb in later in Logic Pro. I have an idea that if I upgrade my Audio Interface to one that has SPDIF that I can listen to a better processed sound through my headphones and then reamp and apply the sounds totally in Logic. The advantage being you put a raw signal into Logic and then you can play with it to your hearts content later on and then reverse anything you do if you don't like it.
I don't have the SPDIF capability at the moment so I'm having to put an amp emulation in the POD HD500 rather than Logic so the sound seems reasonable to my ear while I'm recording.
I have tried mic'ing up amps and I have always got a muddier sound. The other disadvantage is if there is noise outside or someone starts up a lawn mower or something it will muck your recording up.