FWL taxes from "Succession Wars" boardgame

Firstly: it's Succession Wars (not BattleForce) that contains a concise overview of BattleTech's history up to 3025. (I'm a little surprised nobody questioned that.)

I wish I'd found a better scan of the Succession Wars (hereafter SW) map, but the borders, names and values all seem faithful. You can see many places where the borders of a tax region follow the contours of a province. Or, looking just below Atreus on the HM:FWL map, vice versa. I suppose FASA drew both from an earlier map.

I've done my best to match them up. 

Now, the Taxes

The Tax Zones look gerrymandered, so I think I can assume the nine outer zones really do represent 10/25ths of the FWL's taxes. If so, and if the known provinces contribute a share proportionate to their votes, then that leaves an average of 0.4 votes' worth for each independent star system; by the same logic, independent systems in the eight inner zones should average 1.5 votes each.

Zone	SW Taxes	Est. from Avg Votes	Okay?
Ryerson	1	1.6	Ok
Oceana	2	1	nope
Marik	3	3.4	Ok
Danais	1	3.6	nope
Atreus	4	1.9	nope
Regulus	2	2.1	Ok
Oriente	2	1	nope
Calloway	1	1.1	Ok
Furud	1	1.9	nope
Xanthe	1	0.7	Ok
Wisconsin	1	0.8	Ok
Tellman	1	0.9	Ok
Westover	1	1.4	eh
Landfall	1	0.5	eh
Sierra	1	0.8	Ok
Bella	1	1.1	Ok
Megrez	1	1.3	Ok

Adding up the votes in each tax zone, it looks like most zones mostly work. They can be tweaked to fit.

Some zones can't work no matter what, just because the dominant provinces have too many or too few votes.

It's interesting that the zones which are low happen to be next to zones which are high by the same amount; maybe some votes were shifted for gameplay, or maybe the 3D positions of the stars don't map well to a 2D surface.

It's also interesting that the Marik Commonwealth and Duchy of Oriente, which support more 'Mech regiments than you'd expect from their voting power, also contribute more taxes in SW; and that Andurien, which is famous for being unhelpful militarily, contributes less SW taxes (Furud) than you'd expect from their voting power.