i recently got a psp 1003 (UK model) from a friend who did not need it any more, because i heard it could be modded, i followed the FAQ and was not very comfortable with opening and modifying a battery (that and the fact i am not very accurate with such tiny circuits) so i saw to use the soft-mod method, however it seems that there was only a version for 6.61, is this the recommended version to use? if not, which version should i use?