sorry but u all saying a check raise here is better then bet out,i just dont see how...
yes it work here cause MP2 let it go but if he was the one raising, your check raise wouldnt have done nothing to help u since no one would of fold when they would of call MP2 and u would only make a better pot w/o (usual u cant have the best hand here in a raise pot)making other fold since they will chase to the end...
dunno but for me a check raise is make people fold and find where u at,it worked great in this instance but i seriously doubt it work that nicely usuallly in a raise pot.
for me i would just bet out hoping to get raise by MP2(or MP3 in this case) and just 3bet it to really find out where im at.
this way,i feel much better chance to have it heads up and i find it always easier to plays heads up pot then multiway in early position...
by check raising here multiway pot and leading out like that,big chance u ll get trap often since someone migth let u lead the betting just waiting a good opportunity to raise u.
BUT

f course if the preflop raiser would of come from late position then i totally agree with this play but it wasnt...