Done and I'm stuffing myself with humble pie. What crazy
would ever employ a weak agitator? The 4 vane performs just fine, thank you very much.
At Medium water level,
Vane: the large beach towel sloshed back and forth forcefully
Ramp: round and round, going under slightly
At Large water level
Vane: full turnover, efficient
Ramp: full turnover, dramatic deep rumble of water
At Extra-Large with three beach towels and one thick heavy flannel top sheet,
Vane: the loaded spent a few seconds at the top where the vanes extend upward higher than the water level, but the turnover was strong and efficient
Ramp: grabs the clothes, roll and dip, no time on top, right under. The ramps, however, are even with the water level, not above it, no deep rumble.
At normal water levels the ramp is much more fun to watch and the noises are persuasive, intriguing, convincing and powerful; BUT, the vane's sloshing and visibility at extra-large is a also convincing and dramatic, and for me a big surprise. With the vane, the towels and the sheet went a little deeper into the tub during a few strokes. There was open water for a few seconds in a few spots of the tub during each turnover cycle, meaning I could have added more laundry, but alas, none handy. I'll have more for the movie, and we'll let our collective eye make the final judgment. But for now.....
Verdict: a clean draw....a tie. Now let me finish my humble pie