Go for it
I can recommend it. It worked for me on several occasions. The biggest difficulty now is security at places like Farnborough and Luton. However, there are many operations based at places like Blackbushe and probably Shoreham, Northamptonand the like. Most places are welcoming, especially if you turn up reasonably smart and with a smile. If you can afford to, perhaps do a circuit every 3 months or so, and ask whether they know of anyone else who may be recruiting.
The other thing is that in GA, personal contacts can be so helpful. I'll be forever grateful to GA greats Hamish Ross, Simon Rooney and Mike Lawson for the help and support they gave me.