Two sided R perm question

[xRudinx]

Hello, after some guidance on 2sided recognition for each of the r perms from this particular angle as seen in the first picture.

from both these positions I do a U’ and start my alg, one with thumb on top and one with thumb on bottom. I’d like to know if someone can tell me what I should be “thinking” to trigger my brain as to which one I’m about to commence doing..? Cos right now I know to U’ but have to stop and look again to see which R perm I’m about to start.

(second photo is after the U’ before I start my algs)

 

[Jorian Meeuse]

look at whether the two right stickers on the front are opposite or the two front stickers on the right. Also for the case on the left in the photo, please use R2 F R U R U' R' F' R U2 R' U2 R

 

[Skewbed]

look at whether the two right stickers on the front are opposite or the two front stickers on the right. Also for the case on the left in the photo, please use R2 F R U R U' R' F' R U2 R' U2 R

Is this alg only worth it for that specific AUF? I use the inverse of this alg for all AUFs of this PLL.

 

[Jorian Meeuse]

Decide whats best for you, it depends on the person what is fastest and suits you best so I cant decide