Ok so perhaps the soundcard and equalization on Power sdr is whats more important here. I think I will save myself a few quid on the mic and concentrate on buying a FA66.
Thanka for your input guys.
When you have the FA66 take a look at Nigels (G7CNF) youtube video on setting up the Powersdr audio chain, it walks you through the process 'end to end' & gives some really good tips.
BTW. like others I started off using the Delta44 and was constantly 'tweaking' but never really got it right.Moving to the FA66 was the wisest move I made.