10.4.8 (and any other system upgrade) - Safe Mode?

It has recently been suggested to me that in addition to the repair permissions before and after, verify disc, unplug all externals, and use the Combo routine, that booting into safe mode to do any system upgrade is the preferred path since there's less chance of issues arising afterwards. Can someone advise on whether this is the preferred method, or would a safe mode upgrade (in this case to 10.4.8) present additional potential problems?
Also, I'm on an Airport (dual ethernet) network here at work (I'm the admin to all the computers - all G4 PPCs) and we need our network. Is 10.4.8 safe for an Airport network? I've seen some rumblings.

I've never heard or seen it is preferred to install updates after starting up in Safe Mode. Doing so is for troubleshooting purposes only so I'm not sure this is a good idea.
Check this link for recommendations.
http://www.thexlab.com/faqs/installswupdates.html
I use an Airport Express for my wireless network and I experienced no problems after installing the 10.4.8 update. I've noticed a speed improvement when browsing.

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