Based on the provided total ratings, we would rank the horses in the following order:

1. Alabama Pearl (329.9)
2. Rio Largo (322.0)
3. Hasten Slowly (321.5)
4. Parana Delta (288.7)
5. Finsceal Go Deo (279.3)

These are our top five contenders based on their total ratings. However, we will also factor in their individual comments, performance history, and other variables to give a comprehensive assessment.

1. Alabama Pearl (329.9): This horse ranks the highest based on total ratings, indicating a consistent past performance. It had a ‘below form’ performance in its last run at Curragh, but it’s expected to improve. The fact that blinkers are being tried for the first time also suggests that the trainer is making changes to boost the horse’s concentration and potentially improve its performance. With the trainer in good form, Alabama Pearl should be a strong contender.
2. Rio Largo (322.0): As per the comments, this horse had a decisive win at this course and distance last month. This victory could be a confidence boost and an indicator of its suitability for the course. However, it’s up 9lb from the last race, meaning more will be required of it this time around. The draw not being ideal may also be a factor to consider, but based on its total ratings, it’s one to watch.
3. Hasten Slowly (321.5): Despite ending last season on a low note, it seems Hasten Slowly has conditions that suit it in this race. The fact that its yard is in good form is also a positive sign. If it can return to the form it showed earlier, it could be a surprise package.
4. Parana Delta (288.7): This horse is making its debut on turf for a handicap, but it comes from an in-form yard which could make it a dark horse in this race. With a significant break of 123 days, it’s plausible that the horse might have benefited from rest and training.
5. Finsceal Go Deo (279.3): Despite requiring more for this race, Finsceal Go Deo’s second-place finish in a recent race at this course and distance suggests it could be a contender. It’s making its handicap debut, and its yard is in good form, which bodes well.

Beyond the top five, Rathbranchurch (273.4), despite not being in the top five in terms of total ratings, delivered an encouraging performance in Sligo and is one for the shortlist. Back up in trip, it’s expected to perform well, and it might just be a surprise package in the race.

This analysis focuses primarily on the total ratings, but remember that horse racing outcomes can be influenced by many factors, including the form of the horse on the day, the jockey’s performance, and external factors like weather and track conditions.