The best and stable solution for automounting?

There are several procedures for automounting disks and media devices here in Arch, particullary using udev and policy kit, autofs or fstab. I time by time face some problems with access to my second HD od to flashdisk and flashcard. This recently occured with the last upgrade. Static mounting is the best way for internal HD, so I add appropriate line in fstab and create a mountpoint (there are clear rules for permissions unique for fstab). Arch wiki for udev is also very clear to apply but no luck seeing my flashdisk icon on XFCE and LXDE desktop without acces to data. These DMs are activated by Slim in .xinitrc with ck-launch-session and dbus-launch. Fluxbox, in contrary, is started without policy kit and allow me to handle with flashdisk through XFE (both thunar and pcmanfm fail in mounting that). I do not use autofs nor pmount this time. Why automounting works well for year or more without any changes in configurations and after upgrade simply fails with no logic reason? Maybe I have a weak configuration of someting not complying with actual packages. But I have triple methods of automounting and only fstab for static volumes is rock-stable. The simpliest combination of fluxbox, XFE, udisks without policy kit also seems functional but with no services thunar and pcmanfm provide via policy kit.
My comp use all my family, so it is provided with all the DMs and several light WMs.
What is your best experience with automounting solution on your machines? Thank you all for sharing your tips and expanding wisdom!

Thanks for your quick response, Inxsible. Hmm, I have just used devmon with no effect. My problem is in wrong authentication for udisk operation invoked by any means. I followed man and added 99-my-admin-configuration.conf file, also with no effect. Well, I try to mix fstab with udisks/polkit for good reason - fstab is well-approved and sysupgrade-resistant providing thus longterm automounting standard for HD that do not change often. When udiskie and devmon are suggested, why have them (or a better from the two) in AUR? By the way, I have deleted udev rule for automounting with absolutely no change comparing to with the rule state before. System must be consistent in function with the most comprehensive components, not left depending on some helper apps from AUR, despite those clever and functional design...

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