1st Question: Slow playing before the flop in limit O8 is not recommended, unless you're 1st or 2nd to act in a tight game and won't get any callers if you raise in E.P.. You want to get the money in early on low hands. There is no guarantee you will make a high or not get 1/4'rd, even 6th'd. To prevent a loss in a big hand you need to get the money in early to cover those potential losses in the later (and bigger) betting rounds.
2nd Question: 3 bet this flop with your hand everytime, no questions! e.g. - see description above.