Purchasing a ram air parachute from Allen Silver 12 years ago required proof of proficiency. Did two square chute jumps, WHAT FUN! Each jump included flying downwind / base / final and stand-up spot landings. OK, the 100+ hours of paraglider helped. Can be done but not as easy or comfortable with a round chute. Round chutes won't necessarily take you where you want to land if it's windy. You'll be going backwards on final if the wind is much over 10MPH.(remembering 20 jumps using ancient LL and 7TU)
My expensive seat cushion is a Performance Designs PD235. After the toggles are released, the forward speed is about 25MPH. Without releasing the steering toggles, the chute will fly slower: Best L/D and Min Sink speeds.
Jim