[locutus2002]

I read my requisite one page of Harrington last night before I fell asleep. The section starting short-handed play says you should reduce your actual M to an effective M by multiplying by the fraction of a full table that you have. In your case 5/10 means your effective M < 3 which makes your hand instapush even if you know you will get called.

I'm not sure I agree with the effective M short handed concept, but Harrington was probably thinking of exactly your hand when he wrote it.