i thinks it's up to you and your sensibilities, but should you decide to open your hands, here
are some perks:
no special rituals for preperation
greater adaptability for different resistance training--bag/makiwara/stationary wall pad/ball bearing,
etc...
harder hits generally due lessor concern for wrists; fingers; knuckles
forgiving fook-ups if it's a real pressure test
i've seen the sites that essentially coach people to go fingers up for face,
fingers sideways for middle, and fingers down for crotch--or whatever. i've personally
never really thought about it, my body has made whatever adjustments so that my
palm hits in the right place. i've shot it straight out in drive-back drills and sort of ended
up mildly cork-screwing the hand placement [as if doing a diamond push up].
or if it's uncomfortable shooting it straight--as Maija indicated, put a slightly upwards
angle on it for your jab/cross work. nothing beats the jap slap--open handed hook. it's so
merciful on a hook style strike that i've vertually doubled my impact with it.
you don't have to be religious about it. just give it a go, but dare to drop your gloves
for a week and see what you come up with. form doesn't mean much, speed and power and
comfort using it do.
i love it now. on occasion my fist still comes out, but usually on a lessor impact strike--sort
of impulsive and reactive back fist like short strike. that comes out naturally so i'm not
worried and dogmatically purist about it. i also really like throwing the hammer fist--but as
as sort of quasi 'shoto-uke' [not sure if i still remember the term actually...if i fooked it up,
then i'm discribing a side-ish chop but with a tight fist to get my fingers out of it]. either way,
you're still protecting your hand enough to be able to do without the wraps/gloves.
you may feel like having fewer targets [but maybe this is just me, i'm partial to head shots] as this is practical and inclines a faster learning curve for the new open handed trial. go light at first so that you really feel the heel of your hand making the appropriate connections. i've used the jap slap--and it came off as a slap. it was quite shocking, but didn't have the effect it could have if the heel of my hand had made that connection. you don't have to change much. i fire it all off with a boxer's sensibilities and it feels really good, almost too good.
and i used to really really like making a fist; i've just had one too many sprains/breaks, etc...
i'd like to minimize on my injuries. another added perk is--the forearm strength that appears to
be gradually creaping up, and wrist strength. ironically i'm more geared to throw a fist without
consequence [or so i like to think] then when i primarily trained with fists.
forgive the passion. for me it was how i started fighting as a tean with no training. gradually
training replaced sensibilities, and now i'm picking up where i left off and liking it. there's, frankly,
a satisfying feeling of having your hands open and being fired up. less tension, more whip, feels
oddly more twisted in a good way. i've alternated explosive sets on the pads--bag, whatever...so
they resemble mid flow and straight from the fence. i keep the rep range down, the pacing quality
out, and prefer [when working alone] to have a wall behind the bag so that i can really go all out
for longer for speed and explosiveness. then when i have a warm body to hold pads, i'm almost in
the same position to pick up where i left off, but with the forward drive piece to add in.
too much caffeine i reckon.
good luck with your decision.