Never had a problem mounting Conti/Specialized/Vredsteins/Vittorias on my Deep Vs.
13mm rim tape shouldn't cause that many problems, though I generally use the 10mm Velox cloth tape for what its worth.
I'd pull the tape off and check you can actually get the tire mounted before dropping 15 quid on plugs. There are just some tire/rim combos which are just awful.
Never had a problem mounting Conti/Specialized/Vredsteins/Vittorias on my Deep Vs.
13mm rim tape shouldn't cause that many problems, though I generally use the 10mm Velox cloth tape for what its worth.
I'd pull the tape off and check you can actually get the tire mounted before dropping 15 quid on plugs. There are just some tire/rim combos which are just awful.