My advice for what it's worth....
1 - Not worth it? Don't do it.
2 - Fine
3 - OK
4 - Are you sure?
5 - It's NOT eBay, it's never been eBay! Feedback comes from BUYERS not from eBay. Your buyers are comparing your shipping costs relative to the costs from other sellers both on and off eBay, where the seller is located is irrelevant to THEM.
Stop looking at your dsr's and if what you are currently doing is working for you then you don't need to change anything. If it's not working up to your expectations it has nothing to do with your dsr's. The effect of "raised" status is greatly overestimated. On the fairly long list of factors that go into the ranking order for Best Match "raised/standard" comes at the very BOTTOM of the list.
With your low volume of sales & feedback it will be IMPOSSIBLE for you to maintain much better than 4.6/4.7 for any length of time on either 12 month or 30 day ratings. You are already getting rating at or above the eBay average. For your current 30 days 5 buyers rated s&h 5 and 5 buyer gave you a 4. Your only real problem is that at your low volume you are susceptible to getting slaughtered if you have a bad transaction.

"What else could I do? I had no trade so I became a peddler" - Lazarus Greenberg 1915
- answering Trolls is voluntary, my policy is not to participate.