I am planning to install a solent stay on my mast head sloop. If I choose to have a mast connection for the solent stay welded, how is the welding done? I see a potential problem with welding a thick fitting to a thin wall aluminum mast. Should the welder be experienced with welding mast or could any certified welder do the job? What type of aluminum is used for the fitting? Does it matter if the mast and new welded fitting are not the same aluminum series, nor the welding rod/wire?