First I recommend you use Kell's Delta-V Map and figure out your total D-V needed for your final target location.
Then during your build process make sure you have the necessary Delta-V (I usually try to add 10% above what is necessary if possible just in case, especially to the final stage), and as long as your ISP is high and your TWR is above 1.0, you should be good to go!
And when in doubt, add more SRBs!
First I recommend you use Kell's Delta-V Map and figure out your total D-V needed for your final target location.
Then during your build process make sure you have the necessary Delta-V (I usually try to add 10% above what is necessary if possible just in case, especially to the final stage), and as long as your ISP is high and your TWR is above 1.0, you should be good to go!
And when in doubt, add more SRBs!