Experience with SIPP Transfer Out (all Cash) to Interactive Brokers

I am considering initiating a transfer-out of my SIPP from Freetrade to Interactive Brokers. However, I’ve read a few accounts of delays in the transfer process which admittedly has me a bit apprehensive.

Has anyone here gone through the SIPP transfer out process recently, particularly to Interactive Brokers? I’m trying to set my expectations correctly and would greatly appreciate any insights on the timeline I should prepare for. Understanding the rough timings from personal experiences would help me plan better.

How long did the transfer take? Were there any unexpected hurdles you had to overcome? Also, any tips to ensure a smoother transition would be most welcome.

Thank you all for your time and help. It’s greatly appreciated!