Hi. I have a MF 178 with PAVT rear wheels. I am changing the tyres and wondering should I change the wheels too. It currently takes a 30" tyre but I could up to a 34" tyre and standard MF rim for about the same money because 30" are scarce. What Im really asking is are the PAVT wheels and the extra weight of any benifit to me for general farm work. Also the bigger wheels will increase the lifting height I assume by a couple of inches. Thanks