In the films (well the prequels) and TV shows we see jedi deflecting blaster bolts with ease, there are some scenes where they must deflect a dozen or more.
Now this is not possible using the talents in the books due to the strain cost and more importantly the 'wound Leakage' as no matter how good you are some damage will probably get through.
That's OK, most of what we see on the screen does not represent use of the talents in the book, most of them are missed shots, narratively described as missing because it was deflected rather than because the target was making himself hard to hit in other ways. Or since each attack roll can represent more the one shot, sending one shot or a hail of shots is a question of 'colour' and colour can be counted by colour. The shots that need talent use are those that are especially well placed, or catch the force user at a bad time, or out of position, and therefore they need to Strain to reach them.
This is how I see it anyhow.
What I am wondering is how to handle the Wounds that are inflicted when using deflect. What do those Wounds represent? I have no problem with Parry, I can see all kinds of way to still hurt yourself while parrying an attack, but to me you either deflect a blaster bolt or you don't. How is everyone else handling this.