For a period of a couple of years 1959 thru ..1961… I used to practise up to 8 hours a day on my kit…. after this I do very little practise….too much practise can be very damaging as a drummer gets to where he wants to play some lick he’s practised on the gig whether it fits or not, instead of listening to the band…..an ideal practise pad is a large hard backed book with a medium sized towel wrapped round it [dulls the sound and there’s very little bounce]
….once you have achieved the technique and ability to play what you need further practise is pointless….maximum of 30 mins a day on this pad is ideal….playing the rudiments paradiddles, paratriplets, mummy daddy’s and mummy daddy triplets…
Also you need to be able to play these rudiments at a slow tempo then stop and resume at a faster tempo..stop again etc etc….most drummers can play this stuff fast but to play slowly keeping each beat equal will improve timing and technique….if i’ve laid off for a while i just do 20 minutes a day on rudiments…that’s enough….don’t over do it..more harm than good comes of this…