Training against a boxer
A hook, a jab and upper cuts and body shots are thrown slightly differently depending on the boxers build an training...
I find lighter weight more skilled boxers tend to throw their hooks alot shorter and closer than some bigger guys with less skills. it all depends. At the boxing gym i visited there is a Small guy who has enormous power with in a close range. The way he spars with mofos is evidence of that. His body shots and hooks are pretty strong for him to be only 135lbs and 5'7" I rather fight a unskilled heavy weight for power than him.
but at the end of the day its simple
BS drills to defend against a hook or jab is just a drill...Its not gonna save you in a fight...You can drill, drill and drill something a million times,,,,until you actually try using what you drilled in sparring it will be a useless shape...
you will find sparring with different boxers of different skill levels and different sizes some drills work better than others...You must also learn to tweak the posistion and range of your techniques on the fly...learn how to adjust and adapt an change...if bridging aint working learn how to evade. If Evading is too slow learn how to control. But if your using boxing gloves, NOT mma grappling gloves the dimension of your wing chun changes significantly...
I suggest sparring and try bridging and deflecting techniques with WC gloves on while sparring an see what works for you...For me there are about three main techniques that work with Boxing Gloves the best...Most of the ish I disregard.
But the best way to defend a hook is find out what works when your sparring!!!
Even then timing, coordiation and accuracy play a big part...you aint gonna be able to defend every strike thrown at you...you may have to eat a few if you expect to land any strikes yourself!
The Flow is relentless like a raging ocean with crashing waves devasting anything in its path.
"Kick Like Thunder, Strike Like Lighting, Fist Hard as Stones."
"Wing Chun flows around overwhelming force and finds openings with its constant flow of forward energy."
"Always Attack, Be Aggressive always Attack first, Be Relentless. Continue with out ceasing. Flow Like Water, Move like the wind, Attack Like Fire. Consume and overwhelm your Adversary until he is No More"