World Beyblade Organization by Fighting Spirits Inc.

I use a burn virgo gb145ms blade,but would would sd be a better bottom?because i don't have one and can't test a custom like that currently.
i know how sd is good for it's great stamina and it's defensive qualitys,but ms looks like it would spin longer and plastic is sometimes kind of a slippery substance,so being made out of metal would probrably boost some of its stamina and defensive qualities.i've also seen no balance problems with ms that are as severe as some people say it has.
i really just want some opinions on which tip would spin longer.because gb145 gives my blade way more balance.

MS being a sharp bottom has poor balance and can be knocked over quite easily, this is why SD is a better choice.145 is a better track as it allows your blade to wobble before you lose spin , GB145 will scrape the floor , thus , causing you to lose stamina. Bull will be a better clear wheel as it balances out the weight.

if you use wd you wont need to care bout the gb145,145.

There was no need to make a new thread for such a small question.

Use the thread Jerf linked you to.