I wrote an answer earlier, longer than I'd intended, but it felt right to me, and then ran it by my husband, who said, "I'd have answered it differently", so I took dictaton for of his excellent anser, then I hit a wrong key and everything disappeared. I was able to get mine back, but not his, so I set mine aside, and he will tell me again (hopefully tomorrow; I have to get to bed because I have a lot happening tomrrow), and then i will send you both responses. A SLI response and an IEE response. 2 for 1! : )