Be VERY careful in the Bo with reduced fuel in the tanks!
The leading edge tanks on the Bo cause the C/G to move aft with fuel burn.
Starting out with partial fuel means you are starting with the C/G
already partially aft.
I always calculated both the takeoff and landing C/G when I flew the Bo
I had access to.

Newps wrote:
You must not demand much of your plane. Don't you ever just putz around
the local area landing on dirt strips just generally screwing off? I
never fill my 182's tanks unless I am going on a long cross country. I
normally fly with 30-40 gallons onboard. That 240-300 pounds I'm not
carrying makes a big difference in takeoff and landing performance. I'm
now in the middle of learning about my Bonanza I will be getting next
week. I don't care so much about the top end. Any idiot can push the
levers forward and see how fast it will go. I am mostly concentrating
on the low speed end. A friend has a V tail similar to mine except his
is a couple years older and has the 260 hp motor, mine has 285 hp. I
watched him takeoff Saturday. Took him 1400 feet to leave the runway
with just him and 80 gallons, no flaps. I was disappointed as my goal
is to be able to use a friends 1300 foot runway. Now I already know he
always has full tanks. Bo's have bladders and he's afraid of the rubber
drying out if he leaves any air in the tanks for more than about 15
minutes. He said he held it on the ground til 80 mph and then yanked it
off. Very good news. Take 40 gallons of fuel out, use half flaps and
then fly it off at 60 mph with 25 more horsepower weighing about 200
pounds less then he did. Now if you always have full tanks you can't do
this stuff.