Kind of agree, I find the balls drain really quick in multiball on this game - quicker than any other (except maybe BH), and I wondered myself if I'd actually be able to  make use of the multiball mods so thought I'd see others thoughts.

When I get multiball I just bash away like a crazy demented mad thing and very typically loose balls rapidly.  the only technique I try is to get the balls as high up the playfield as possible to delay the inevitable.  The other day someone posted a link to a few videos with some whiz playing and he used a technique where with more than one ball in play he retained one ball on/in the activated flipper so there was less action on the playfield. Thought I might try to muck around with this, but I don't predict any dramatic increase in scores!

The other mod that was interesting in the home rom was the ten seconds of spinner light up after ball launch - you'd have to be pretty lucky to get through the fire lanes and bumpers and then have a very fast and accurate return shot to get through the spinner in the allocated ten seconds!