If you still want the original Recto sound but a bit tighter and easier to play they the Cusack Screamer V2. One of the most transparent Overdrive on the market, also very quiet.
The Ultra mode on channel 2 has a lot of gain. Some guitars (pickups) are noisier than others, but with reasonable settings you should be good to go with a Zuul or a Decimator in front. That’s how I use it.
The Maxi-Preamp & Maxi-Matcher are very accurate and reliable, absolutely no complaints about them after some years of testing with them. Costly but worth it, if you have many amps and care about what’s going in them.
It’s a personal choice, but it’s one big investment to do and your set for...
If it’s what i think it is. It’s just an external regulating power transformer. To have more steady readings. Depends on the moment of the day, your home voltage may slightly vary and give you different results.
The VFE Merman (Klon type) for very subtle boost. If I want a tubescreamer but something transparent I go with the Cusack Screamer. It retains the main tone of the amp.