@Rob ****
yes, absolutely no problem. The METV has a validity of 6 months starting on the day of issue. Within this validity period, you can do unlimited entries into Thailand ("multiple re-entry permit"). On each entry, you will get stamped in for 60 days. . . . at the moment, there is a little controversy if you can get a last 60-days stay permit when you do a last entry shortly before the visa validity expires, which would mean that you can actually get a stay of 8 months out of the METV. . . some people report that the last entry was rejected, but I assume it was for a different reason, maybe it was something personal . I don't know for sure, you need to check reports in the FB-groups that tell about the multi entry tourist visa