I only fish with M weights when fishing 10gr M00, 14gr M0, 20gr M1 and 25gr M1.5
When distance casting we use P4 (2oz), 3oz and 4oz
When making the bom up make it wet and quite soft. Allow it to draw water for 20 minutes before starting to fish. If it is then a bit wet ad a little bit of dry feed to bind it.
This way the feed is saturated and wil break up every time and you won't pull the bol out.
Take a handful of feed, knead it in your hand binding it before applying it. make a roundish bol, push it over the line till the line is central and then slide it down onto the weight.
The M weight's base must protrude from the bottom of the bol.
Now knead the bol and shape it in a taper to the top, this will prevent the bol from pulling through in the cast.
Hang the trace in your hand and test the balalnce of the bol by spinning the trace, if it wobbles slightly it will travel in a spiral when casting and cost you distance.
If it wobbles violently then it is off centre on the weight and will come off when you cast.
If it's not right do it again or you will cast the bol off.