microwave pa

Hi. I was wondering if any experienced PA designers knows if it is necessary to include the Cros and Tee when joining stubs onto a line in ADS. I have been designing switching amplifiers in ADS and the Cros and Tee elements really mess up my design and affect my harmonic traps. I find it very difficult to just compensate for these elements by tuning the amplifier. Any suggestions?
Also how reliable is an ADS simulation for a 2.5Ghz Class-F amplifier - I am quite sceptical that the fabricated PA will perform poorly in practice, due to the sensitivity of the switch-mode PA to changes in lengths, widths. Any Tips? Thanks

Is not necessarily to use those ustrip junctions if you are able to tune the PA for maximum performances.
Already there are many integrated Class-F PA’s on the market, so is possible to do this project.