Best offsets for squares over Pittsburgh+Charleston WFO

Num Points per Side	Num Valid * Avg Percent valid	Number of Valid Squares	Avg Percent Valid Points	Left offset	Top offset	Threshold
2	1649	1649	1	1	0	0.75
3	735.9	747	0.9851	2	2	0.75
4	407.1	413	0.9856	0	3	0.75
5	258.9	265	0.9771	2	0	0.75
6	176.1	180	0.9782	5	1	0.75
7	128.7	133	0.9676	3	0	0.75
8	96.03	99	0.97	6	7	0.75
9	77.44	80	0.9681	2	1	0.75
10	61.15	63	0.9706	3	9	0.75
11	51.6	54	0.9556	8	5	0.75
12	42.03	44	0.9553	4	10	0.75
13	36.08	38	0.9495	2	6	0.75
14	30.26	32	0.9455	4	8	0.75
15	26.64	28	0.9516	3	2	0.75
16	23.25	25	0.93	10	0	0.75
17	20.91	23	0.9093	16	0	0.75
18	17.51	19	0.9214	12	17	0.75
19	15.8	17	0.9296	6	3	0.75
20	14.84	16	0.9277	0	13	0.75
21	13.31	15	0.8874	11	11	0.75
22	12.07	13	0.9288	8	18	0.75
23	10.94	12	0.9119	2	11	0.75
24	9.837	11	0.8943	20	3	0.75
25	8.752	10	0.8752	14	23	0.75
26	7.645	8	0.9556	16	20	0.75
27	7.446	8	0.9307	11	17	0.75
28	7.214	8	0.9018	5	13	0.75
29	6.961	8	0.8701	1	9	0.75
30	5.546	6	0.9243	26	22	0.75
31	5.424	6	0.9039	23	20	0.75
32	5.294	6	0.8823	19	19	0.75
33	5.152	6	0.8587	14	15	0.75
34	4.394	5	0.8787	13	7	0.75
35	4.273	5	0.8547	9	3	0.75
36	4.16	5	0.8319	4	0	0.75