Vacuum head designed for concrete on vinyl pool?

[gsrel]

Just wondering if anyone has used the following vacuum head that is designed for concrete pools on a vinyl pool?

I would assume that it would be easier to vacuum/glide vs one with brushes. The only thing that may be a negative is that you are not able to "brush" while vacuuming (unless the brushes are to help glide only). Sorry for the total newbie questions!

14 inch Wide Vacuum Head On Wheels - Pool Supplies Canada

vs

Deluxe Weighted Green Vacuum Head - Pool Supplies Canada

 

[PoolguyinCT]

I have a “concrete” roller vac that I use only on liner pools (to keep wheels from becoming abrasive.)
It is much beefier than the linked item so it wont flex & “grab” a liner.
I paid about $175.00 for it 12 years ago.

 

[Protlost]

I use something like the green one on my in ground vinyl liner pool. I haven't had any issues with it but am considering a robot.

 

[gsrel]

Is there a higher chance of ripping ones liner with a wheeled vac head? Is that why they recommend it for concrete?

One downside I can see to the triangular head is that as one pushes it along the surface bottom the brushes will push any debries into a cloud in front of it thus not sucking it up.

Downside to the roller/wheeled vac head is that you have to manually scrub the bottom of the pool with a brush to lift any stuck derbies. Mind you I suppose this would be more for algae growth

Perhaps Im overthinking all this....

 

[gsrel]

Just wondering if anyone else has used these wheeled heads on a vinyl pool and if so any issues? (abrasions, liner sucking up into head, etc)