I must admit I was expecting a bit of banter after my previous comment. However, the post by "juliet" didn't even include a smilie
On a more serious note the K fleet has and is developing a significant capability as yet unmatched by the J. The J has a significant lead in terms of the flight deck avionics but as yet doesn't have the mission capability of the K in my opinion.
To give that capability would require an extra crew member to manage the kit.
I don't really care if its a Nav, Engineer, Loadie or even another Pilot. I just don't think the present crew complement would suffice in managing what would be bolt-on kit rather than fully integrated systems with implications on time and cost to realise.
PS Biggus I have time in the Mighty Hunter, K and J amongst others.
Arbie, To reiterate the advice by TAC Queen. Get yourself to Lyneham, Waddington and Kinloss. Have a look around, you can tell a lot over a casual beer with crews and get a trip in the respective aircraft types.