1. yes. basically readymade is good for starter. basically after playing for a while, u know dy how u play, looper/chopper/etc... from there u can go for next step, choosing correct rubber according to ur style.. for example if u play more heavy loop, then tacky rubber is the best...

2. yes, usually the hard part is to get rid of the sponge and glue residue.. u can use petrol and cloth to remove the residue. kasi clear sampai tinggal kayu... dont use alot of petrol.. sikit2 saja ok..

3. if u want to stick new rubber, for example, pimple rubber, need to lapik with paper below as u apply glue to bat, because pimple rubber u cannot gelek with a roller.. if normal rubber, can gelek.. refer to youtube video..

4. cheap supermarket blade with soft type of wood may also be good if u change the rubber to pimple.. so, no need to buy specific blade made specific for defensive style..