What round starts the IDP grab?

Draft is tonight. 12 man PPR with 2 of each DL/DB/LB. I see Watt, Kuechly and Wake in the top 3 spots and want at least one of them.

Last year was the 4th season of this game and players got very IDP savvy finally so my strategy of waiting until about round 14 before pulling guys like Byrd and Lofton a few years back are over. I wsa playing with scraps.

Our IDP players are tuned down a little to not over power the offensive players (1 T, 0.5 AT, 3 sack, 4 turnovers, +0.5 TFL).

So, without an IDP mock draft, what is the right round to start some IDP grabs?

I've seen Willis go in the 4th round before. Last Year JPP went in the 6th. Neither of those worked well at all.

Here's the quick recap of the first 10 IDPs gone and when. Some strange moves here in order:

JJ Watt  7th
D. Ware 7th
L. Kuechly 8th
D. Washington 8th
S. Lee 8th
J. Laurinaitis 9th
A. Smith 9th
B. Raji 9th
C. Wake 9th
P. Posluszny 9th

I feel like I got away with murder here. We play 2 of each with only 5 total bench spaces. Here's what I scored using the Guru's sheet:

DLs: C.Wake JPP
LBs: L.Kuechly L.David
DBs: B.Pollard T.Branch

I'm waiting for the week 1 ranks with match ups before picking up a sub for JPP.  

Kuechly a steal in the 8th, In a lot of our idp drafts 2 lb, 2 db, 2 dl. Lb's start at rnd 5 with the exception of watt going as well. Db's are plenty deep . ss'position is the value.  we get 3pt sacks, 2 pt tackle 1 asst. No one grabs lb sack artists until the mlb's are gone. Dl's are extremely inconsistent w/ the few exceptions, watt ,jpp, allen.