[caliaca]

Guile does a lot as a stat and I don't understand how you could think it only amounts to being critical damage when it provides a fair chunk of hit even without full flanking bonuses. Adding flat critical damage in particular to STR wouldn't help much either, flat crit damage mods currently aren't affected by your critical modifier and as Ray has personally pointed out, this only amplifies what they're already good at rather than addressing the main issue with the archetype.

If you're worried about excel and parashu as a result of adding critical damage to strength... then to be perfectly frank, you should be worried about it now. Changing strength is just going to adjust the lower and upper end of the spectrum to the same degree and if the upper end is egregious, it would need to be adjusted.

That said, I personally think 0.5 crit chance for 1 strength is a bit more fair of a suggestion really, it gives the archetype of strength hitting crit-based builds more stat leeway to work with than just arbitrarily raising their numbers higher; stat leeway has always been the #1 biggest issue with these builds since more often than not, they simply cannot afford the stats they need and have to make sacrifices more than most.

Yea Miller has posted what I harp on all the time for.
.5 crit chance fixes the issue much more than crit damage.