Squamous cell in situ with excision and laser treatment

I have two skin cancers on my calves.  One was a basal cell that had been there for 5 years and looked like a wart.  The other was a squamous cell in situ.  I have had both removed during a biopsy and then my

Dr. followed up with a laser treatment.  His margins were 4 mm.  I am not sure whether I should have had to Mohs micro surgery instead.  Dr. said it was overkill for my cancers.  However, the recurrence rate is 5 to 10% with the laser and only 2 with Moh's.  The scars are circular.  One is the size of a nickel and the other a dime.  I am also being treated with Carac on my chest and have had 9 moles removed that came back O.K.  Just scared all the time.  Has anyone used laser as a follow up for these types of cancers?