You could try the Rose Revived stretch of the Windrush at Newbridge Oxfordshire or the Tadpole Bridge Stretch of the Thames.It is West of Oxford near Rushey weir.Failing that John Baker of the bait fame has a good bit of the Loddon.Details from the phone number in his magazine ads.I do not know if you use Oxhey Angling Centre but Terry or Doug may also be able to assist.