reclink problem

Dear statalisters:

I am using Michael Blasnik's reclink (from SSC) to match records.
I get extremely high matching scores, and yet the records do not match. What may be the problem?

reclink eco_nom using "base1", gen(myscore) idm(id) idu(objectid) minscore(0.6) minbigram(0.6)

+-----------------------------+
| score merge ueco_nom |
|-----------------------------|
1. | .9079807 1 |
2. | .8911394 1 |
3. | 1 1 |
4. | .929682 1 |
5. | .929682 1 |
|-----------------------------|

Thank you in advance

Humberto Santos
Interamerican Development Bank
1300 New York Avenue, Washington DC