From what I have seen, I think the Best grass field planes are the BVM King Cat and the Boomerang. Both are very aerobatic and land slow. The retracts on the KC are strong and the pilots at our field keep the gear. On the other hand, the Boomerang is a fixed gear. For a real hard landing you may have to bend the wire strut. If want looks the KC is much nicer. You can have 8 Boomerangs for one KC.
Al Cardash is gong to have a Baby Boomerang ARF around Feb. A short field and grass, this is the plane. If it performs anything like the big brother than you have a winner for any field.
Burt