I tested this out in a mulitplayer game against a very good player and it worked well.
I was Germany and built 3 serials of CAs, 2 With FC 1 without. The one without fire control is so my fleet has CAs with lower gun range so the battle is target at 90% of that range allowing the CLs with FC to also fight. I had 4 serials of CLs all with FC and 2 serials of CVLs.
The battles occured around gibralter and to the south around the canarie islands.
My fleet of 30 ships, 13 CAs most with FC, 15 CLs with FC and 2 CVLs engaged a 30 ship UK fleet with 8 BBs, 3 CVs and number of CAs CLs and DDs. It was an intense and costly battle for both sides. In the end I pulled out as a 2nd fleet came in, the remains of the french fleet with a few more BBs and crusiers.
Befor I tell you the results of that battle there was another battle with my 2nd fleet made up of the starting BCs, CAs and CLs along with a number of new builds making a fleet of 24 ships with 2 CVLs. This fleet also engaged a large fleet of some 50+ ships trying to evac the 20 divisions I was fighting at gibralter. I succesfully engaged the fleet and held it off long enough to destroy those 20 divisions. After this I pulled out as my fleet had lost 9 ships and I was massively outnumbered.
In these two battles although I lost around a combined total of 30 ships mostly CLs with some CAs. The UK lost 3 CVs, 10 BBs, 3 BC, 3 CAs, 11 CLs, 14 TPs, 14 DDs. The loss of the 10 BBs plus 3 CVs was the main part of the UK surface fleet. These losses could not be replaced for the UK anytime soon. The french fleet and other allied fleets also lost around anoth 20 ships.
All up my fleets took alot of losses but dealt out far more to the enemy and has gained naval superioty. My losses could be replaced rather quickly with 7 serials of cruisers building, running at now full gearing. 100 days for a CLs and around 140 for a CA. In just over a year I can replace most of my losses, could the UK replace its?
The answer is no. Once the fleet was repaired the remainder of both fleets merged to form one fleet of about 25 ships. This combined with the Italian fleet sortied to invade the UK home islands. Since naval superiorty was won in the previous battles only limited reistance from the UK fleet occured. With some 160 Axis divisions massed on the french coast the UK was soon over run.
At present its is nearly time for the Russian war its may 1941. We always wait till the histocial date. I had one fleet of 30 ships and another of about 15 ships, I estimate that by end of 1941 to early 1942 I will have 2 full fleets of 30 ships. These will mostly engage the US navy should they try and attack me. I plan to use these fleets in a 1,2 punch. Should I find a US fleet the first fleet will engage and depending on if I win or retreat, the 2nd fleet will move in to do further damage to an already weakened fleet. I may even have a 3rd 30 ship fleet built by the time the US is confident enough to attack. With the UK in my possiesion, gibralter, suez, middle east all in my hands the US faces a big task.
It is a 6 player MP games and this curizerg strategy has worked wonders for me so far.