Personally I used "deep cycles" on both banks, start and house. A pair of #235's for the house and a Grp 27 DEEP CYCLE on the start side. The deep cycle Grp 27 had plenty of power for the cranking of the "lil A-4" and I never had a problem. I liked the idea of being able to drain the battery down and not worrying about a start batteries recharging limitations if discharged.
Now that I am maintaining a "56hp stinker" I do use a good hi-capacity start battery.
Dave Neptune