So, here's how I clean my bikes, I've never used acf50 and never had any corrosion.
1. Spray either SDOC100 power gel or ph neutral snow foam onto a dry cold bike, and leave it on for 10-15 minutes.
2. Jet wash it off, not getting too close to anything electrical/ bearings etc.
3. Shampoo bike with Zymol car shampoo.
4. Jet wash shampoo off.
5. Blow dry from the engine/ switchgear/ any hard to reach areas.
6. Wipe over with a moist microfibre cloth.
7. Go over the bike again with a dry microfibre cloth.
From start to finish, I can do the GSA in about 45 minutes. The only additional measure I take when the roads are salty, is a liberal spray with FS365 before EVERY ride, if the roads have been gritted.
If it's been raining or the bike has got wet during the ride, I'll then thoroughly rinse the bike when I get home, blow dry the water off, then wash (as above) either later that day when the bike has cooled down, or the next day.