glad to hear that you are enjoying 4.1
![Smile :)](./images/smilies/icon_e_smile.gif)
I think you will find that SharpSolve is a good deal faster than PS3 - in one test I have done, PS3 takes 16s to solve a particular image and SharpSolve takes less than 0.5s. These figures are for SharpSolve using the index that goes down to 0.5 degree FOV - the larger index that goes down to 0.25 degree FOV is ~4 times slower.
PS3 may provide higher accuracy - SharpSolve was designed to be quick and accurate to within a few arc seconds, not to provide accuracy at the sub-arc-second level.
PS3 is hampered by the fact that there is no way to specify limits on the search area on the command line, so it will always search the whole sky. SharpSolve, Astap and Astrotortilla can all restrict the search to a certain area of the sky, speeding things up in certain plate solving operations.
cheers,
Robin