Not far from you is a spot I've been going to since I was a kid. 51.392512, -1.055010 It's just north of the pond. It's like somebody's carved out a track for BMX's or RC's. I went there with my Slash last year, hasn't changed in 20 years. It's only about maybe 30x30 metres but loads of jumps, good area nearby for scale crawlers too. My nephew has just moved to Tadley so if I'm down that way with my Slash I'll let you know and we'll have a bash.