Many thanks for your votes gents' - even though voting is still open, it looks like the results are clear.
8 votes for the Nieup. 17 and 4 for the Nieu. 24, also 3 for the low-compression Hisso version of the Se5/5a. Will therefore do FM tweaks for the Lewis and Vickers-armed Nieup. 17, Lewis and Vickers-armed Nieup. 24, and will tinker with an approximation of the "Adder" or low-compression Hisso variant of the Scout Experimental - for a ver. 5.0 of the FM pack.
The Fokk. D.VI, D.II/III, and some of the Parasols - I will comb over in a later ver. 6.0 pack since those are not pressing concerns.
Happy flying,
Von S