I found this mod on the Nexus which fixes the bug on Deflect arrows - namely that having deflect arrows gives you 85% damage reduction to all physical damage rather than 100% DR to arrows that hit the shield. The only drawback to this particular mod is that it no longer checks against whether or not the arrow actually hit the shield - it just blocks 100% of arrow damage when blocking. It could be slightly OP, but it's not mroe OP than the current situation, which just breaks blocking entirely. You could also probably load up the CK and adjust the 100% damage vaue to 85% or 90% if you were feeling ambitious.

http://skyrim.nexusmods.com/downloads/file.php?id=7740


edit: just saw someone already posted this

Still waiting for any news on a fix, dont know if it can be 'hotfixed' without a patch but I want to make a sword+shield for my 3rd playthrough.

If you're on PC, the mod in the post directly above yours works well and works as the game originally intended(or at least seems like it was intended based on the wording of the perk)

Waiting for news on a fix too. Find this one fairly infuriating..

up to the top...fix it...and the rest of the uesp bugs too.......................................

isn't this the whole purpose of blocking ??
like a earlier poster mentioned if you only take the 4 perks from blocking you have the same effect the ¨P is just making elephants out of mice
besides you can't do much els while blocking can't you

No.

In order to get 85% you need to have 100 poins in block and four perks. If you're getting there through combat it's not unreasonable to say your character would be level 35+ before reaching this.

Or, you could get deflect arrows perk with 30 points in block and be invincible at level 5.