I hope this posts ok. This is the F18 rules for weight. The Tiger rules are 309 or greater. Less than 309 must carry the weight to get to 309. So it just depends on if they register as an F18 or a Tiger which rules they have to abide by.

Weight lbs. Added Weight lbs. Weight kg Added Weight kg Jib sq m Spin sq m
253 17 115 7.5 3.45 19
255 15 116 7 3.45 19
257 14 117 6.5 3.45 19
260 13 118 6 3.45 19
262 12 119 5.5 3.45 19
264 11 120 5 3.45 19
266 10 121 4.5 3.45 19
268 9 122 4 3.45 19
271 8 123 3.5 3.45 19
273 7 124 3 3.45 19
275 6 125 2.5 3.45 19
277 4 126 2 3.45 19
279 3 127 1.5 3.45 19
282 2 128 1 3.45 19
284 1 129 0.5 3.45 19
286 0 130 0 3.45 19
288 0 131 0 3.45 19
290 0 132 0 3.45 19
293 0 133 0 3.45 19
295 0 134 0 3.45 19
297 0 135 0 3.45 19
299 0 136 0 3.45 19
301 0 137 0 3.45 19
304 0 138 0 3.45 19
306 0 139 0 3.45 19
Larger Spinaker
308 11 140 5 4.15 21
310 10 141 4.5 4.15 21
312 9 142 4 4.15 21
315 8 143 3.5 4.15 21
317 7 144 3 4.15 21
319 6 145 2.5 4.15 21
321 4 146 2 4.15 21
323 3 147 1.5 4.15 21
326 2 148 1 4.15 21
328 1 149 0.5 4.15 21
330 0 150 0 4.15 21

Mike Hill
Tiger #1520