That's fine advice, but I will note that twice in my career I've had bad RSI issues due to overuse of my thumb. I learned the wisdom of trying to utilize as man

That's fine advice, but I will note that twice in my career I've had bad RSI issues due to overuse of my thumb. I learned the wisdom of trying to utilize as many fingers as possible. Perhaps it slows me down a little, but my performance is not correlated with typing speed.