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21cm interdigital filter equivalent schematic and SIM99 simulation, help needed

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Bojans

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Some time ago I designed 21cm interdigital filter usin VK3UM app.
wa4dsy program also gave very similar out (for 0.1dB ripple).

However, when I build it, the best adjustment I could do is as per attached image.

https://obrazki.elektroda.pl/3695947800_1456963361.jpg
https://obrazki.elektroda.pl/8022947100_1456963363.jpg


I tried to understand which parameters should be manipulated to obtain the same result, so I tried RFSim99 simulation as below
https://obrazki.elektroda.pl/2973757800_1456963249.jpg

Could someone tell me if this equivalent schematic is adequate?
 

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