Oki, ive got a 2510 device.
I flashed the firmware to 107b5 from herries.
I have no liteon dirve so cant check PI values, but i ran the dvd read test in nero with with burns with the harrie firmware. There was some drops here and there though i burned with verbatim and 4x.
I flashed to the 2510 firmware from DVDBOOST, running the dvdspeed again and the curve is PEEEEEEEEEEEEERFECT!!
Anyone experienced the same?