Originally Posted by
mr. losi
i think that you should do some research...Geo-Y-Rock did a measurement and the os and grp are the same...
in fact, i have been using an os plug in my grp since day one.....and the was 2 years ago....so rest assured....they will work...
Ok, been told something else. Did not bother testing, why on earth should anyone put GRP plugs in an O.S anyways? Or even use GRP plugs?
Compared to OD or O.S. they're rubbish, IMO.