I have a set of MacGregor Tourney Silver Scot 985 (1960ish) with original True Temper MacGregor Tourney shafts (5 iron is 37″ and D1). Shaft feels like a medium flex.  I want to put the set in play but need to add +2″ to each iron.  Not overly concerned with swing weight.  Obviously I can just use shaft extensions – Curious if anyone has other recommendations (i.e reshaft with XPS??, Graphite, etc).  Thanks