Anywhere north of me involves the Gatwick zone. May I say of recent how pleasantly surprised I have been at the willingness of Gatwick control staff to give clearances through their control zone both VFR and IFR to GA aircraft such as me. Thank you. Many GA'ers can efficiently transit controlled airspace and it often saves us a great deal of time. Only one supplementary request, which I am sure controllers hopefully realise, is that the usual will "come back to you" often means that by the time the controller has, you have transitted so far around the control zone that the clearance you were hoping for no longer has much value. I know controllers are busy, but if a transit is unlikely due to commercial traffic, please say so at the outset. My recent trip from Biggin home was the most refreshing when the controller offered without request transit of the Gatwick zone on first contact - well done!