Singtung Lopper attachment for Hayauchi Pole Saw

I am not a professional arborist. I purchased this product as an addition to a Silky Hayauchi Pole Saw. The problems with the lopper attachment are [1] weight - the lopper is too heavy for use with the Silky pole, [2] the nut and bolt supporting the blade comes loose, [3] the blade jams even when cutting small twigs / branches and [4] the bolted attachment to the Silky handle is OK but it could have been modelled on the attachment which is used on the Silky saw - it's just not well designed. I am really disappointed with this product. I have an old lopper and I find myself using this in preference to this attachment.