I know this has been discussed multiple times, however I'm wondering whats best. I just called my local Kwikfit and they're charging £49.00 to recharge the aircon. Halfords charge £19.99 for the Trigger and Gauge, and £34.99 for the canister. (these can be used multiple times). Which would be the best option for me? Will Kwikfit do leak tests/some form of guarantee? Cheers.