so i've been doing petrus all wrong

[choipster]

when i was first learning petrus, it seems i didnt fully grasp the block building concept and took my easy way out. instead of building blocks, i insert the red/white/blue corner between the red/white/blue centers and inserted the corresponding edge pieces to create a 2x2x2 block. after watching a youtube video

http://youtube.com/watch?v=MU23FwDEflQ

and reading the comments, i found out that i was doing it the inefficient way. but will my speed really cap out above 30? i had a couple sub30 nonlucky solves but lately i've been averaging around 40. if i learned the true petrus method, how much do you think my times would improve? right now i average 25-30 seconds on my F2L, probably 15-18 of which is spent on the 2x2x3. thanks for any insight

 

[AvGalen]

How long have you been practising with this method?

15-18 seconds for a 2x2x3 block is way too long. Doing a 3/4 cross, 1 corner, another corner, 1 F2L-edge, another F2L-edge (a very slow way to build a 2x2x3 block) shouldn't take longer than 10 seconds after a couple hours of practice for you.

 

[choipster]

i've been on petrus since february with about 2 and a half months of little or no practice. but i do it differently than the way you described. i plug in one corner, then the two edges to get a 2x2x2. then i expand on that to make a 2x2x3. that fastest i can go is around 12 seconds for the 2x2x3 and another 10 to finish up the f2l.

 

[AvGalen]

Don't use the way I described! doing it that way is the very worst way I could think of doing it. My point was that even with that very bad way you should still be able to do it in under 10 seconds!

Worst way:
2 seconds for 3/4 cross
2 seconds corner
2 seconds edge
2 seconds corner
2 seconds edge
10 seconds total