R10/S10 brushroll performance?

[blackheart]

I've been working on some sand pickup tests and my Riccar R10P Superlite Premium has been doing poorly. I found that the brushroll was misaligned forcing the baseplate out of place but that's been fixed since test 2 but still it's giving mediocre results. I've been curious as to whether the more chevron style pattern of the wooden brushroll would clean better.

For those interested here's my data so far. In theory this should perform better than the orecks having superior airflow (based upon the Simplicity S10P test) and producing more vibration.
Test 1: 34.8%
Re-test: 45.2%
Test 2: (post brushroll and base correction) 51.8% of sand removed
Oreck 4090: 60%
Oreck XL-21 66%

Has anyone compared the two directly before? If so what was your result?

 

[vacuumdevil]

It's funny you mention this I've been doing some testing in filming with these machines lately. freedom F3700,R10S and an XL-21

Honestly the cleaning difference between the m all is really negligible from what I can tell. I think the faster spinning brush roller of the xl21 helps it clean a little bit better on carpet. I really don't see a performance difference between the older generation and newer generation Riccar /simplicity. However the newer generation has a much nicer sounding motor,gets Lower and lots of other little improvements ,

 

[dysonman1]

I told the engineers at Tac O Nee many times that the steel agitator threw cat litter out of the side of the machine, since the bristles were not patterned to bring the dirt toward the suction intake. I hated demonstrating them on bare floors. They are terrible. The engineering department could not have cared less. Too worried about keeping their jobs to actually engineer anything well. Or New. The wooden agitator, and low-speed, actually sweep the majority of the dirt up off a bear floor. And the wooden agitator gets the rug cleaner when dealing with Debris like sand, cat litter, cookie crumbs, etc.

 

[ralph123]

I'm glad that Tom steered me towards the more basic model with wooden brushroll when I purchased 2 at the factory store.