Just throwing it out there. Got bids to replace our 20 yo single stage WF geo. We want to spend no more than 12k oop so we're at the WF 3 2 stage 4 ton (no performance pack) and the Cmaster 22 3.5 ton. Thoughts anyone? I know the WF is basic contractor grade but in all honesty so is the system we have that we got 20 trouble-free years from. Not bells and whistles but again, we don't have any now. Is the 5 series worth another 2k? 2000 sf 2 story frame home. Will be here another 6-8 years max. Thanks.