I fully understand the drip problem. Every tank I had back in the day leaked. Inversions were done over the sink. Using my hand leaked less than the supplied flimsy lid and I trusted to youth and stupidity to protect me from dermatitis. No leaks from the Major II and the top doubles as a funnel. Very well made at a time when bean counters only counted beans and were kept away from manufacturing decisions. Bought mine at a boot sale early 90s after quitting photography because it was only 50 pence and never say never. Have just had a look at it and 35mm volume is 185 ml. 127 film is 230 ml. No mention on the tank that 35mm is max 20 exposures, which is a bit naughty.