RE: Quique Somenzini YAK-54S 73
Get yourself a Perry Pump (the oscillating type) and locate the tank in front of the wingtube close to the c.g.
No need o use a HP tank. Use the stock one.
You will be amazed. The plane tracks straight either way with very minor adjustment.
Mine is the pumped one but I have seen the setup above performing faultlessly on a Giant UcanDo.