I had similar problems. And still do some times. Let's face it shaving is more irritating to some folks skin than others. You can do some things to help reduce or prevent the irritation.
1. Dump the multi blade it is causing the most damage. Personally I like the adjustable de's b/c they can be dialed way back.
2. Prep... hot towel method and use your Proraso Pre/Post
3. Shave with the grain for about 3-4 weeks, then you can start with other passes.
4. Then finally nuke the water for your brush 2 mins then plop the brush and razor in at the same time. The hot water will kill any bugs that might be living on the razor. Once a week or when ever you change the blade clean the razor really good with alcohol.
I do not believe menthol causes ingrowns. Maybe it irritates your skin though and causes you to breakout? Test it on your arm.
[I]When 900 years you reach, look as good, you will not.[/I]