How much is your Archer worth, 50 - 70k? I find it difficult to comprehend aircraft owners that are prepared to "save" maybe a few dollars on what is, in real terms, a very expensive "investment". You have been given some very good advise here. I would use the 1428 myself despite the extra cost. At the end of the day you would probably save <$100 in
an overall cost of how may thousands of dollars?