Engines and Equality

I recently purchased Fritz 12 and am new to using engines for analysis. Well, confused would be a more accurate term.

Let's say the Fritz engine is giving equality (=) as I flip through the game for several moves during infinite analysis and then suddenly spikes to +/- 0.60.

1. Does this mean that the current move caused a real improvement in the position by a full 6/10ths of a pawn?

The value, +/- 0.60, tends to move back towards equality if I let Fritz ponder for a long time, i.e. +/- 0.30.

2. Is Fritz attempting to equalize the board with these lengthy move sequences?

3. Is Fritz producing weaker moves for the winning side as the search depth increases in an attempt to achieve equality?

It seems that Fritz prefers draws!  Learning weaker moves would not be helpful.

I see. Thank you.

I just got a chess dot com computer analysis back. Wow! Those continuations were amazing. The computer is rated at 2500. I don't know the elo of Fritz 12, but I have not seen continuations that clever before.

Computer Analysis (~2500 strength)

Inaccuracies: 2 = 8.7% of moves

Mistakes: 12 = 52.2% of moves

Blunders: 0 = 0.0% of moves

Score: +16.23

I won on time but half of my moves were mistakes!!

Well, it was a 5 minute blitz game, and I hope I'm not the only one who struggles to play at a strength of 2500 elo at a blitz speed.

although they can be very fun, I would take a break from the computers for a while. Imo if you use too much of them early on it takes away from chess development.