Pull the wrap you choose tight as possible, make your wrap with the ridges at the overlap in the proper direction for the bars and as thin a wrap as possible and use as short a wrapped section as feasible. Other than these you could look at the aerobars on the pro's TT bicycles ans see what they use.
Bill
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Semper Fi, USMC, 1975-1977
I Can Do All Things Through Him, Who Gives Me Strength. Philippians 4:13