Wing Tips for RV9

Hi I am 4hours into test flying my 9 after more years building than I care to think about. I'm happy with the job except for the wing tips. I didn't do a good job on these and I wonder if there are any sources for better quality mouldings than those Vans supplied. Like Sam James does with cowlings. If anyone can recommend a supplier I would be obliged.
M Martin (UK based )