When I use the machine to do a bench press I can lift quite a lot for a lad my size, but when I go on the smithy machine I cant seem to lift as much. I know this is probably down to the weight of the supporting bar. But I now want to have a go with no assistance but dont wanna look like a fool and not be able to lift the weight I set up. Will I be able to lift the same as on the machine or will it be less ?