I need some advice please. My local supplier has a sale on Tenergy 05 rubbers but in 1.9 mm thickness only, personally I would prefer a 2.1 mm to go with my 7-ply wood Sanwei V5 Pro and possibly switch to an ALC carbon blade down the road. Will I notice the difference (good or bad)? Should I just hold off? Finally, is there a big difference between the regular 05 and 05 FX? I should add that I have played for 4 years and consider myself just below "intermediate" level. I am wondering if I should just stick with the H3 Neo until I reach closer to the intermediate level. Thanks in advance.