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Hi Roger
The description of your problems leads me to believe that the poor alignment and Goto accuracy is not due to your wedge. I have not used a Meade super wedge but I did make my own from steel using the basic idea of the Meade Super Wedge and I used it to support my LX200GPS 12" for six years in the observatory.
I was able to get a very good polar alignment, 1 arcminute or better and this was maintained for this period without the need to re-align. Slewing from east to west was always better than 4 arc minutes and short slews no measureable errors. This was was achieved by very careful orthogonal alignment of the forks and OTA such that the orthogonality was better than 10 arc seconds.
LX200's were notorious for poor orthogonoality in the forks. I saw one out of the box that had one fork 3 mm higher than the other. Gotos were nonexistant.
I was able to lift the telescope off the wedge for maintenance (I have a crane to do this) and replace it without any need to do any more than goto a star from the park position and centre and sync.
There was some flexure of the forks and base but none in the wedge.
The Milburne wedge is very strong and firm but it won't correct problems of orthogonality and flexure of the fork arm and it is a lot of money.
Barry
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