Dude, the quickest way from Arborfield is this-
Straight over at the sainsburys crossroads as if your heading to hurst golf club, follow that road to the sharp bend and hang a right towards the Castle restaurant (lost yet?), follow that all the way to the end at the duck pond, turn left then immediately right towards the green man pub, follow that all the way to the end and then turn right, about 1/2 mile up the road turn left, and then left again about 200mts down the road. Follow this road to the end (you'll pass Woods Builders yard on the right), at the end of that road turn left, end of that road turn right and if you follow that you'll end up in woodlands park (going past the airfield) and you'll know where you are.
Should save you loads of time. Takes me about 15/20 minutes to get from the BMW garage near the airfield to the Aborfield Rec going this way.
Consider that my Christmas present to you, lol.