Can someone give me an approximate cost of replacing my Aluminum mast on my Inter 18 with a carbon mast? Would I simply contact my Inter dealer or are there alternative sources for obtaining a carbon mast. Also, what are the performance and weight benefits of 'upgrading' to a carbon mast? <br> <br>Thanks in advance. <br> <br>Bob Klein <br>Inter 18 USA #273<br><br>