Thanks again, guys. Mickey: I'd certainly like to see your standing rest, and hope you can post some pictures - I'd like to make mine readily portable as well as stable, since the local range is about 15 miles away.
500 and MR: I'm very prone to attacks of attempted humor, I admit - I can't help it - it's an inheritance (curse?) from my mother's side of the family (the Irish Ryans) - the old devil coming out just to aggravate the dour and disapproving spirits of the rest of the ancestral mob; Scots Grays and English Moores and Bentons. So, I'll have to ask for your understanding and indulgence: I promise to get in all the facts (and without undue embellishment), but can't promise to be serious about it. :->
mhb - Mike