Be careful with those quick fuellers, they can be quite problematic.

I'd recommend a "T" or a 3 line setup instead.

20% Nitro is a bit of overkill for most .46 engines. Most will run well with 10%, and 15% makes it a bit easier to tune. Likewise with the equivalent in 4C engines...

Starting off with 15% on a newer engine may be advisable, then later you can work your way to 10% and save the difference.