Because discs are not legal under 160g in PDGA events except the (Japan Open). I get where youre coming from I love Leopards.
Whoa whoa whoa WTH? Where are you pulling that out of?
http://www.pdga.com/rules
Hi-Tech
approved discs must (see drawing below):
(1) have a circular, saucer-like configuration, wit
h a flight plate unbroken by perforations and an
underside inner rim depth that is between 5 and 12 p
ercent of the outside disc diameter. The flight plat
e
is defined as the upper (or dorsal) section of the
disc, which is delineated by the points where the inn
er
rim depth is measured. The saucer-like configuratio
n requires a significant degree of asymmetry
between the upper and lower sections, resulting in
distinct top and bottom sides of the disc;
(2) be made of solid, non-magnetic plastic material,
without any inflatable components;
(3) not be less than 21 cm in outside disc diameter,
nor exceed 30 cm in outside disc diameter;
(4) not exceed 8.3 g per cm of outside disc diameter
;
(5) not exceed a maximum weight of 200 g;
(6) have a flight plate that does not exceed 0.5 cm
in thickness, including any raised features such as
lettering, ridges, nipples, and other thickened part
s. Discs with a thickened section atop or underneat
h
the flight plate, however, may increase to 1.0 cm in
flight plate thickness in this section only, provide
d
that this section:
(i)
is circular in outline;
(ii)
is between 5 and 10 cm in diameter for an area with
a uniform thickness that is centered on
the center point of the disc; and
(iii)
gradually thins at the outer edge at a slope that a
verages no more than 50% (or 22.5 degrees)
relative to the surrounding part of the flight plate.
No part of the underside of the flight plate
may be closer than 0.5 cm to the plane defined by the b
ottom of the rim.
(7) have a smooth surface on the bottom part of the r
im; that is, a surface free of any irregularities s
uch
as protrusions or depressions. When placed on a flat
surface, the rim must have no discernible gaps
between itself and the surface on which it is resti
ng.
(8) have a rim area, beyond the top of the flight pla
te, that does not include any surface elevation tha
t is
more than 3mm above the outermost edge of the fligh
t plate.
(9) have a rim width no greater than 2.6 cm (Does n
ot affect discs approved prior to 1/1/08);
(10) have a circular inner rim no less than 15.8 cm
in diameter. (Does not affect discs approved prior
to
1/1/08).
(11) have a rim configuration rating of 26.0 or gre
ater;
(12) pass the leading edge radius test with a 1/16"
(1.6 mm) radius gauge;
(13) have a flexibility rating no greater than 27 l
b. (12.25 kg);
(14) be of a production-type disc available commercia
lly to the public in numbers of at least 500; and,
(15) be essentially as produced, without any post-prod
uction modifications that affect the weight or
flight characteristics.
150 Class
is the designation given to discs approved for play
in Japan and other PDGA sanctioned
events designated as
150 Class
. All discs on the PDGA Approved list may be used i
n these competitions
as long as their weight is 150 grams or lower.
Looks to me like the rule is < 200 g unless you're in Japan (or another 150 class comp) in which case it has to be < 150. There is no minimum weight.
I have a 110 g Polecat for my kids. I don't think I'd like to go that light but there is no doubt I can throw a 137-139 boss further (and less accurately) than a 150 boss, much less a 175.