I have used Pyramid Pure Nickel Rounds in sizes '45-'105 and '40-'100. Great sound, but roundwounds in general are too aggressive for my fingers (in my job i need to wear plastic gloves over several hours a day...)
The intonation was far less a problem as it is with the D'Addario Half Rounds i currently use. BTW: as a workaround, a simple nut of size M5 or similar can be fiddled on the strings showing the problem...
(the hipshot is underways...)