I am getting ready to go on a 8 day trip to Bonaire and have just purchased a D70 with an Ikelite case, 18-70mm, 60mm and DS50 &DS125 Strobes and was told by Ikelite that I would end up with problems with the 60mm Macro if I used the 5503.55 verse the 5503.50. Not sure if I should buy the additional dome or not and risk having issue with my 60mm.