This amp inadequacy is something I've noticed with my 5str. However through my friend's huge old Ampeg you realise that this Bass is startlingly good for the money. Thanks to @whynot from this forum
However my new KSD Proto J 5str rescue project is the heaviest thing I have ever tried. Will confirm accuracy of this impression via B/room Scale soonish, whilst avoiding any temptation to check My own!
VERY heavy pretty battered and I think John East is the way to go (if I ignore the cost versus bass purchase price !!!;). 35" scale a new sensation for me too. This is going to be a "project/rolling restoration" for sure.