Does Neo 2.2 damage laser in all version Ps2

[jpb1]

Does the Neo 2.2 only damage the laser in V3 machines - have had my NEo 2 fitted for about 8 months & there's no problem with it - no skipping or nothing.

I've only got 2 dvdr backups I haven't played a load of them yet, so if it makes my ps2 buy the farm I may get a messiah.

Some Advice from you Ps2 heads would be great.